diff --git a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/actions/tables/InsertAction.java b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/actions/tables/InsertAction.java
index 5ce2ce38..29266e13 100644
--- a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/actions/tables/InsertAction.java
+++ b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/actions/tables/InsertAction.java
@@ -54,6 +54,7 @@ import com.kingsrook.qqq.backend.core.model.actions.tables.insert.InsertInput;
 import com.kingsrook.qqq.backend.core.model.actions.tables.insert.InsertOutput;
 import com.kingsrook.qqq.backend.core.model.data.QRecord;
 import com.kingsrook.qqq.backend.core.model.metadata.QBackendMetaData;
+import com.kingsrook.qqq.backend.core.model.metadata.code.QCodeReference;
 import com.kingsrook.qqq.backend.core.model.metadata.fields.QFieldMetaData;
 import com.kingsrook.qqq.backend.core.model.metadata.fields.QFieldType;
 import com.kingsrook.qqq.backend.core.model.metadata.joins.JoinOn;
@@ -174,9 +175,21 @@ public class InsertAction extends AbstractQActionFunction<InsertInput, InsertOut
             .withRecordList(insertOutput.getRecords()));
       }
 
-      //////////////////////////////////////////////////////////////
-      // finally, run the post-insert customizer, if there is one //
-      //////////////////////////////////////////////////////////////
+      ////////////////////////////////////////////////////////////////
+      // finally, run the post-insert customizers, if there are any //
+      ////////////////////////////////////////////////////////////////
+      runPostInsertCustomizers(insertInput, table, insertOutput);
+
+      return insertOutput;
+   }
+
+
+
+   /***************************************************************************
+    **
+    ***************************************************************************/
+   private static void runPostInsertCustomizers(InsertInput insertInput, QTableMetaData table, InsertOutput insertOutput)
+   {
       Optional<TableCustomizerInterface> postInsertCustomizer = QCodeLoader.getTableCustomizer(table, TableCustomizers.POST_INSERT_RECORD.getRole());
       if(postInsertCustomizer.isPresent())
       {
@@ -193,7 +206,25 @@ public class InsertAction extends AbstractQActionFunction<InsertInput, InsertOut
          }
       }
 
-      return insertOutput;
+      ///////////////////////////////////////////////
+      // run all of the instance-level customizers //
+      ///////////////////////////////////////////////
+      List<QCodeReference> tableCustomizerCodes = QContext.getQInstance().getTableCustomizers(TableCustomizers.POST_INSERT_RECORD);
+      for(QCodeReference tableCustomizerCode : tableCustomizerCodes)
+      {
+         try
+         {
+            TableCustomizerInterface tableCustomizer = QCodeLoader.getAdHoc(TableCustomizerInterface.class, tableCustomizerCode);
+            insertOutput.setRecords(tableCustomizer.postInsert(insertInput, insertOutput.getRecords()));
+         }
+         catch(Exception e)
+         {
+            for(QRecord record : insertOutput.getRecords())
+            {
+               record.addWarning(new QWarningMessage("An error occurred after the insert: " + e.getMessage()));
+            }
+         }
+      }
    }
 
 
@@ -308,6 +339,19 @@ public class InsertAction extends AbstractQActionFunction<InsertInput, InsertOut
             insertInput.setRecords(preInsertCustomizer.get().preInsert(insertInput, insertInput.getRecords(), isPreview));
          }
       }
+
+      ///////////////////////////////////////////////
+      // run all of the instance-level customizers //
+      ///////////////////////////////////////////////
+      List<QCodeReference> tableCustomizerCodes = QContext.getQInstance().getTableCustomizers(TableCustomizers.PRE_INSERT_RECORD);
+      for(QCodeReference tableCustomizerCode : tableCustomizerCodes)
+      {
+         TableCustomizerInterface tableCustomizer = QCodeLoader.getAdHoc(TableCustomizerInterface.class, tableCustomizerCode);
+         if(whenToRun.equals(tableCustomizer.whenToRunPreInsert(insertInput, isPreview)))
+         {
+            insertInput.setRecords(tableCustomizer.preInsert(insertInput, insertInput.getRecords(), isPreview));
+         }
+      }
    }
 
 
diff --git a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/actions/tables/UpdateAction.java b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/actions/tables/UpdateAction.java
index 30fcde0b..8730ae14 100644
--- a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/actions/tables/UpdateAction.java
+++ b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/actions/tables/UpdateAction.java
@@ -57,6 +57,7 @@ import com.kingsrook.qqq.backend.core.model.actions.tables.query.QueryOutput;
 import com.kingsrook.qqq.backend.core.model.actions.tables.update.UpdateInput;
 import com.kingsrook.qqq.backend.core.model.actions.tables.update.UpdateOutput;
 import com.kingsrook.qqq.backend.core.model.data.QRecord;
+import com.kingsrook.qqq.backend.core.model.metadata.code.QCodeReference;
 import com.kingsrook.qqq.backend.core.model.metadata.fields.DynamicDefaultValueBehavior;
 import com.kingsrook.qqq.backend.core.model.metadata.fields.FieldBehavior;
 import com.kingsrook.qqq.backend.core.model.metadata.fields.QFieldMetaData;
@@ -199,6 +200,18 @@ public class UpdateAction
       //////////////////////////////////////////////////////////////
       // finally, run the post-update customizer, if there is one //
       //////////////////////////////////////////////////////////////
+      runPostUpdateCustomizers(updateInput, table, updateOutput, oldRecordList);
+
+      return updateOutput;
+   }
+
+
+
+   /***************************************************************************
+    **
+    ***************************************************************************/
+   private static void runPostUpdateCustomizers(UpdateInput updateInput, QTableMetaData table, UpdateOutput updateOutput, Optional<List<QRecord>> oldRecordList)
+   {
       Optional<TableCustomizerInterface> postUpdateCustomizer = QCodeLoader.getTableCustomizer(table, TableCustomizers.POST_UPDATE_RECORD.getRole());
       if(postUpdateCustomizer.isPresent())
       {
@@ -215,7 +228,49 @@ public class UpdateAction
          }
       }
 
-      return updateOutput;
+      ///////////////////////////////////////////////
+      // run all of the instance-level customizers //
+      ///////////////////////////////////////////////
+      List<QCodeReference> tableCustomizerCodes = QContext.getQInstance().getTableCustomizers(TableCustomizers.POST_UPDATE_RECORD);
+      for(QCodeReference tableCustomizerCode : tableCustomizerCodes)
+      {
+         try
+         {
+            TableCustomizerInterface tableCustomizer = QCodeLoader.getAdHoc(TableCustomizerInterface.class, tableCustomizerCode);
+            updateOutput.setRecords(tableCustomizer.postUpdate(updateInput, updateOutput.getRecords(), oldRecordList));
+         }
+         catch(Exception e)
+         {
+            for(QRecord record : updateOutput.getRecords())
+            {
+               record.addWarning(new QWarningMessage("An error occurred after the update: " + e.getMessage()));
+            }
+         }
+      }
+   }
+
+
+
+   /***************************************************************************
+    **
+    ***************************************************************************/
+   private static void runPreUpdateCustomizers(UpdateInput updateInput, QTableMetaData table, Optional<List<QRecord>> oldRecordList, boolean isPreview) throws QException
+   {
+      Optional<TableCustomizerInterface> preUpdateCustomizer = QCodeLoader.getTableCustomizer(table, TableCustomizers.PRE_UPDATE_RECORD.getRole());
+      if(preUpdateCustomizer.isPresent())
+      {
+         updateInput.setRecords(preUpdateCustomizer.get().preUpdate(updateInput, updateInput.getRecords(), isPreview, oldRecordList));
+      }
+
+      ///////////////////////////////////////////////
+      // run all of the instance-level customizers //
+      ///////////////////////////////////////////////
+      List<QCodeReference> tableCustomizerCodes = QContext.getQInstance().getTableCustomizers(TableCustomizers.PRE_UPDATE_RECORD);
+      for(QCodeReference tableCustomizerCode : tableCustomizerCodes)
+      {
+         TableCustomizerInterface tableCustomizer = QCodeLoader.getAdHoc(TableCustomizerInterface.class, tableCustomizerCode);
+         updateInput.setRecords(tableCustomizer.preUpdate(updateInput, updateInput.getRecords(), isPreview, oldRecordList));
+      }
    }
 
 
@@ -278,11 +333,7 @@ public class UpdateAction
       ///////////////////////////////////////////////////////////////////////////
       // after all validations, run the pre-update customizer, if there is one //
       ///////////////////////////////////////////////////////////////////////////
-      Optional<TableCustomizerInterface> preUpdateCustomizer = QCodeLoader.getTableCustomizer(table, TableCustomizers.PRE_UPDATE_RECORD.getRole());
-      if(preUpdateCustomizer.isPresent())
-      {
-         updateInput.setRecords(preUpdateCustomizer.get().preUpdate(updateInput, updateInput.getRecords(), isPreview, oldRecordList));
-      }
+      runPreUpdateCustomizers(updateInput, table, oldRecordList, isPreview);
    }
 
 
diff --git a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidator.java b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidator.java
index 8f7793ef..89af643f 100644
--- a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidator.java
+++ b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidator.java
@@ -42,6 +42,7 @@ import java.util.function.Supplier;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 import com.kingsrook.qqq.backend.core.actions.automation.RecordAutomationHandler;
+import com.kingsrook.qqq.backend.core.actions.customizers.TableCustomizerInterface;
 import com.kingsrook.qqq.backend.core.actions.customizers.TableCustomizers;
 import com.kingsrook.qqq.backend.core.actions.dashboard.widgets.AbstractWidgetRenderer;
 import com.kingsrook.qqq.backend.core.actions.metadata.JoinGraph;
@@ -252,6 +253,17 @@ public class QInstanceValidator
       {
          validateSimpleCodeReference("Instance metaDataActionCustomizer ", qInstance.getMetaDataActionCustomizer(), MetaDataActionCustomizerInterface.class);
       }
+
+      if(qInstance.getTableCustomizers() != null)
+      {
+         for(Map.Entry<String, List<QCodeReference>> entry : qInstance.getTableCustomizers().entrySet())
+         {
+            for(QCodeReference codeReference : CollectionUtils.nonNullList(entry.getValue()))
+            {
+               validateSimpleCodeReference("Instance tableCustomizer of type " + entry.getKey() + ": ", codeReference, TableCustomizerInterface.class);
+            }
+         }
+      }
    }
 
 
@@ -301,6 +313,17 @@ public class QInstanceValidator
       validatorPlugins.clear();
    }
 
+   
+
+   /*******************************************************************************
+    ** Getter for validatorPlugins
+    **
+    *******************************************************************************/
+   public static ListingHash<Class<?>, QInstanceValidatorPluginInterface<?>> getValidatorPlugins()
+   {
+      return validatorPlugins;
+   }
+
 
 
    /*******************************************************************************
@@ -2238,8 +2261,7 @@ public class QInstanceValidator
    /*******************************************************************************
     **
     *******************************************************************************/
-   @SafeVarargs
-   private void validateSimpleCodeReference(String prefix, QCodeReference codeReference, Class<?>... anyOfExpectedClasses)
+   public void validateSimpleCodeReference(String prefix, QCodeReference codeReference, Class<?>... anyOfExpectedClasses)
    {
       if(!preAssertionsForCodeReference(codeReference, prefix))
       {
diff --git a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QInstance.java b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QInstance.java
index 7b1fe014..49e64d17 100644
--- a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QInstance.java
+++ b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/QInstance.java
@@ -23,6 +23,7 @@ package com.kingsrook.qqq.backend.core.model.metadata;
 
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.LinkedHashMap;
 import java.util.LinkedHashSet;
@@ -30,6 +31,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.kingsrook.qqq.backend.core.actions.customizers.TableCustomizers;
 import com.kingsrook.qqq.backend.core.actions.metadata.JoinGraph;
 import com.kingsrook.qqq.backend.core.actions.metadata.MetaDataAction;
 import com.kingsrook.qqq.backend.core.exceptions.QException;
@@ -65,6 +67,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.security.QSecurityKeyType;
 import com.kingsrook.qqq.backend.core.model.metadata.tables.QTableMetaData;
 import com.kingsrook.qqq.backend.core.scheduler.schedulable.SchedulableType;
 import com.kingsrook.qqq.backend.core.utils.CollectionUtils;
+import com.kingsrook.qqq.backend.core.utils.ListingHash;
 import com.kingsrook.qqq.backend.core.utils.StringUtils;
 import io.github.cdimascio.dotenv.Dotenv;
 import io.github.cdimascio.dotenv.DotenvEntry;
@@ -116,6 +119,8 @@ public class QInstance
    private QPermissionRules defaultPermissionRules = QPermissionRules.defaultInstance();
    private QAuditRules      defaultAuditRules      = QAuditRules.defaultInstanceLevelNone();
 
+   private ListingHash<String, QCodeReference> tableCustomizers;
+
    @Deprecated(since = "migrated to metaDataCustomizer")
    private QCodeReference metaDataFilter = null;
 
@@ -1623,4 +1628,76 @@ public class QInstance
       return (this);
    }
 
+
+
+   /*******************************************************************************
+    ** Getter for tableCustomizers
+    *******************************************************************************/
+   public ListingHash<String, QCodeReference> getTableCustomizers()
+   {
+      return (this.tableCustomizers);
+   }
+
+
+
+   /*******************************************************************************
+    ** Setter for tableCustomizers
+    *******************************************************************************/
+   public void setTableCustomizers(ListingHash<String, QCodeReference> tableCustomizers)
+   {
+      this.tableCustomizers = tableCustomizers;
+   }
+
+
+
+   /*******************************************************************************
+    ** Fluent setter for tableCustomizers
+    *******************************************************************************/
+   public QInstance withTableCustomizers(ListingHash<String, QCodeReference> tableCustomizers)
+   {
+      this.tableCustomizers = tableCustomizers;
+      return (this);
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   public QInstance withTableCustomizer(String role, QCodeReference customizer)
+   {
+      if(this.tableCustomizers == null)
+      {
+         this.tableCustomizers = new ListingHash<>();
+      }
+
+      this.tableCustomizers.add(role, customizer);
+      return (this);
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   public QInstance withTableCustomizer(TableCustomizers tableCustomizer, QCodeReference customizer)
+   {
+      return (withTableCustomizer(tableCustomizer.getRole(), customizer));
+   }
+
+
+
+   /*******************************************************************************
+    ** Getter for tableCustomizers
+    *******************************************************************************/
+   public List<QCodeReference> getTableCustomizers(TableCustomizers tableCustomizer)
+   {
+      if(this.tableCustomizers == null)
+      {
+         return (Collections.emptyList());
+      }
+
+      return (this.tableCustomizers.getOrDefault(tableCustomizer.getRole(), Collections.emptyList()));
+   }
+
 }
diff --git a/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/actions/tables/InsertActionInstanceLevelTableCustomizersTest.java b/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/actions/tables/InsertActionInstanceLevelTableCustomizersTest.java
new file mode 100644
index 00000000..b911c7da
--- /dev/null
+++ b/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/actions/tables/InsertActionInstanceLevelTableCustomizersTest.java
@@ -0,0 +1,149 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2025.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qqq.backend.core.actions.tables;
+
+
+import java.util.List;
+import java.util.Optional;
+import com.kingsrook.qqq.backend.core.actions.customizers.TableCustomizerInterface;
+import com.kingsrook.qqq.backend.core.actions.customizers.TableCustomizers;
+import com.kingsrook.qqq.backend.core.context.QContext;
+import com.kingsrook.qqq.backend.core.exceptions.QException;
+import com.kingsrook.qqq.backend.core.model.actions.AbstractActionInput;
+import com.kingsrook.qqq.backend.core.model.actions.tables.insert.InsertInput;
+import com.kingsrook.qqq.backend.core.model.data.QRecord;
+import com.kingsrook.qqq.backend.core.model.metadata.code.QCodeReference;
+import com.kingsrook.qqq.backend.core.model.statusmessages.SystemErrorStatusMessage;
+import com.kingsrook.qqq.backend.core.utils.ListingHash;
+import com.kingsrook.qqq.backend.core.utils.TestUtils;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertNull;
+
+
+/*******************************************************************************
+ **
+ *******************************************************************************/
+public class InsertActionInstanceLevelTableCustomizersTest
+{
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Test
+   void testInstanceLevelCustomizers() throws QException
+   {
+      QContext.getQInstance().withTableCustomizer(TableCustomizers.PRE_INSERT_RECORD, new QCodeReference(BreaksEverythingCustomizer.class));
+      QRecord record = new InsertAction().execute(new InsertInput(TestUtils.TABLE_NAME_SHAPE).withRecord(new QRecord().withValue("name", "octogon"))).getRecords().get(0);
+      assertEquals("Everything is broken", record.getErrorsAsString());
+      assertNull(record.getValueInteger("id"));
+
+      QContext.getQInstance().setTableCustomizers(new ListingHash<>());
+      QContext.getQInstance().withTableCustomizer(TableCustomizers.PRE_INSERT_RECORD, new QCodeReference(SetsFirstName.class));
+      QContext.getQInstance().withTableCustomizer(TableCustomizers.PRE_INSERT_RECORD, new QCodeReference(SetsLastName.class));
+      QContext.getQInstance().withTableCustomizer(TableCustomizers.POST_INSERT_RECORD, new QCodeReference(DoesNothing.class));
+      DoesNothing.callCount = 0;
+      record = new InsertAction().execute(new InsertInput(TestUtils.TABLE_NAME_SHAPE).withRecord(new QRecord().withValue("name", "octogon"))).getRecords().get(0);
+      assertEquals("Jeff", record.getValueString("firstName"));
+      assertEquals("Smith", record.getValueString("lastName"));
+      assertNotNull(record.getValueInteger("id"));
+      assertEquals(1, DoesNothing.callCount);
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   public static class BreaksEverythingCustomizer implements TableCustomizerInterface
+   {
+      /*******************************************************************************
+       **
+       *******************************************************************************/
+      @Override
+      public List<QRecord> preInsertOrUpdate(AbstractActionInput input, List<QRecord> records, boolean isPreview, Optional<List<QRecord>> oldRecordList) throws QException
+      {
+         records.forEach(r -> r.addError(new SystemErrorStatusMessage("Everything is broken")));
+         return records;
+      }
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   public static class SetsFirstName implements TableCustomizerInterface
+   {
+      /*******************************************************************************
+       **
+       *******************************************************************************/
+      @Override
+      public List<QRecord> preInsertOrUpdate(AbstractActionInput input, List<QRecord> records, boolean isPreview, Optional<List<QRecord>> oldRecordList) throws QException
+      {
+         records.forEach(r -> r.setValue("firstName", "Jeff"));
+         return records;
+      }
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   public static class SetsLastName implements TableCustomizerInterface
+   {
+      /*******************************************************************************
+       **
+       *******************************************************************************/
+      @Override
+      public List<QRecord> preInsertOrUpdate(AbstractActionInput input, List<QRecord> records, boolean isPreview, Optional<List<QRecord>> oldRecordList) throws QException
+      {
+         records.forEach(r -> r.setValue("lastName", "Smith"));
+         return records;
+      }
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   public static class DoesNothing implements TableCustomizerInterface
+   {
+      static int callCount = 0;
+
+
+
+      /***************************************************************************
+       *
+       ***************************************************************************/
+      @Override
+      public List<QRecord> postInsertOrUpdate(AbstractActionInput input, List<QRecord> records, Optional<List<QRecord>> oldRecordList) throws QException
+      {
+         callCount++;
+         return records;
+      }
+   }
+}
diff --git a/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/actions/tables/UpdateActionInstanceLevelTableCustomizersTest.java b/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/actions/tables/UpdateActionInstanceLevelTableCustomizersTest.java
new file mode 100644
index 00000000..2f86e8eb
--- /dev/null
+++ b/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/actions/tables/UpdateActionInstanceLevelTableCustomizersTest.java
@@ -0,0 +1,70 @@
+/*
+ * QQQ - Low-code Application Framework for Engineers.
+ * Copyright (C) 2021-2025.  Kingsrook, LLC
+ * 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
+ * contact@kingsrook.com
+ * https://github.com/Kingsrook/
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.kingsrook.qqq.backend.core.actions.tables;
+
+
+import com.kingsrook.qqq.backend.core.BaseTest;
+import com.kingsrook.qqq.backend.core.actions.customizers.TableCustomizers;
+import com.kingsrook.qqq.backend.core.context.QContext;
+import com.kingsrook.qqq.backend.core.exceptions.QException;
+import com.kingsrook.qqq.backend.core.model.actions.tables.insert.InsertInput;
+import com.kingsrook.qqq.backend.core.model.actions.tables.update.UpdateInput;
+import com.kingsrook.qqq.backend.core.model.data.QRecord;
+import com.kingsrook.qqq.backend.core.model.metadata.code.QCodeReference;
+import com.kingsrook.qqq.backend.core.utils.ListingHash;
+import com.kingsrook.qqq.backend.core.utils.TestUtils;
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+
+/*******************************************************************************
+ **
+ *******************************************************************************/
+public class UpdateActionInstanceLevelTableCustomizersTest extends BaseTest
+{
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Test
+   void testInstanceLevelCustomizers() throws QException
+   {
+      QRecord record = new InsertAction().execute(new InsertInput(TestUtils.TABLE_NAME_SHAPE).withRecord(new QRecord().withValue("name", "octogon"))).getRecords().get(0);
+
+      QContext.getQInstance().withTableCustomizer(TableCustomizers.PRE_UPDATE_RECORD, new QCodeReference(InsertActionInstanceLevelTableCustomizersTest.BreaksEverythingCustomizer.class));
+      record = new UpdateAction().execute(new UpdateInput(TestUtils.TABLE_NAME_SHAPE).withRecord(new QRecord().withValue("id", record.getValue("id")).withValue("name", "octogon"))).getRecords().get(0);
+      assertEquals("Everything is broken", record.getErrorsAsString());
+
+      QContext.getQInstance().setTableCustomizers(new ListingHash<>());
+      QContext.getQInstance().withTableCustomizer(TableCustomizers.PRE_UPDATE_RECORD, new QCodeReference(InsertActionInstanceLevelTableCustomizersTest.SetsFirstName.class));
+      QContext.getQInstance().withTableCustomizer(TableCustomizers.PRE_UPDATE_RECORD, new QCodeReference(InsertActionInstanceLevelTableCustomizersTest.SetsLastName.class));
+      QContext.getQInstance().withTableCustomizer(TableCustomizers.POST_UPDATE_RECORD, new QCodeReference(InsertActionInstanceLevelTableCustomizersTest.DoesNothing.class));
+      InsertActionInstanceLevelTableCustomizersTest.DoesNothing.callCount = 0;
+      record = new UpdateAction().execute(new UpdateInput(TestUtils.TABLE_NAME_SHAPE).withRecord(new QRecord().withValue("id", record.getValue("id")).withValue("name", "octogon"))).getRecords().get(0);
+      assertEquals("Jeff", record.getValueString("firstName"));
+      assertEquals("Smith", record.getValueString("lastName"));
+      assertNotNull(record.getValueInteger("id"));
+      assertEquals(1, InsertActionInstanceLevelTableCustomizersTest.DoesNothing.callCount);
+   }
+
+}
diff --git a/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidatorTest.java b/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidatorTest.java
index d790ca59..7f651074 100644
--- a/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidatorTest.java
+++ b/qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/instances/QInstanceValidatorTest.java
@@ -176,6 +176,30 @@ public class QInstanceValidatorTest extends BaseTest
 
 
 
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   @Test
+   void testInstanceLevelTableCustomizers()
+   {
+      assertValidationFailureReasons((qInstance) -> qInstance.withTableCustomizer(TableCustomizers.PRE_INSERT_RECORD, new QCodeReference(QInstanceValidator.class)),
+         "Instance tableCustomizer of type preInsertRecord: CodeReference is not of the expected type");
+
+      assertValidationFailureReasons((qInstance) ->
+         {
+            qInstance.withTableCustomizer(TableCustomizers.POST_UPDATE_RECORD, new QCodeReference(QInstanceValidator.class));
+            qInstance.withTableCustomizer(TableCustomizers.POST_UPDATE_RECORD, new QCodeReference(QInstanceValidator.class));
+            qInstance.withTableCustomizer(TableCustomizers.PRE_DELETE_RECORD, new QCodeReference(QInstanceValidator.class));
+         },
+         "Instance tableCustomizer of type postUpdateRecord: CodeReference is not of the expected type",
+         "Instance tableCustomizer of type postUpdateRecord: CodeReference is not of the expected type",
+         "Instance tableCustomizer of type preDeleteRecord: CodeReference is not of the expected type");
+
+      assertValidationSuccess((qInstance) -> qInstance.withTableCustomizer(TableCustomizers.POST_UPDATE_RECORD, new QCodeReference(CustomizerValid.class)));
+   }
+
+
+
    /*******************************************************************************
     ** Test an instance with null backends - should throw.
     **