diff --git a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricher.java b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricher.java
index 6895a258..ba2d7165 100644
--- a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricher.java
+++ b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/instances/QInstanceEnricher.java
@@ -55,6 +55,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.fields.DynamicDefaultValueB
 import com.kingsrook.qqq.backend.core.model.metadata.fields.FieldAdornment;
 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.fields.QSupplementalFieldMetaData;
 import com.kingsrook.qqq.backend.core.model.metadata.joins.QJoinMetaData;
 import com.kingsrook.qqq.backend.core.model.metadata.layout.QAppChildMetaData;
 import com.kingsrook.qqq.backend.core.model.metadata.layout.QAppMetaData;
@@ -582,6 +583,14 @@ public class QInstanceEnricher
          }
       }
 
+      ////////////////////////////////////////////////////
+      // enrich any supplemental meta data on the field //
+      ////////////////////////////////////////////////////
+      for(QSupplementalFieldMetaData supplementalFieldMetaData : CollectionUtils.nonNullMap(field.getSupplementalMetaData()).values())
+      {
+         supplementalFieldMetaData.enrich(qInstance, field);
+      }
+
       runPlugins(QFieldMetaData.class, field, qInstance);
    }
 
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..e578d570 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
@@ -72,6 +72,7 @@ import com.kingsrook.qqq.backend.core.model.metadata.fields.AdornmentType;
 import com.kingsrook.qqq.backend.core.model.metadata.fields.FieldAdornment;
 import com.kingsrook.qqq.backend.core.model.metadata.fields.FieldBehavior;
 import com.kingsrook.qqq.backend.core.model.metadata.fields.QFieldMetaData;
+import com.kingsrook.qqq.backend.core.model.metadata.fields.QSupplementalFieldMetaData;
 import com.kingsrook.qqq.backend.core.model.metadata.fields.ValueTooLongBehavior;
 import com.kingsrook.qqq.backend.core.model.metadata.joins.JoinOn;
 import com.kingsrook.qqq.backend.core.model.metadata.joins.JoinType;
@@ -1148,6 +1149,21 @@ public class QInstanceValidator
             }
          }
       }
+
+      validateFieldSupplementalMetaData(field, qInstance);
+   }
+
+
+
+   /***************************************************************************
+    **
+    ***************************************************************************/
+   public void validateFieldSupplementalMetaData(QFieldMetaData field, QInstance qInstance)
+   {
+      for(QSupplementalFieldMetaData supplementalFieldMetaData : CollectionUtils.nonNullMap(field.getSupplementalMetaData()).values())
+      {
+         supplementalFieldMetaData.validate(qInstance, field, this);
+      }
    }
 
 
@@ -1701,6 +1717,8 @@ public class QInstanceValidator
 
                               validateSimpleCodeReference("Process " + processName + " code reference:", codeReference, expectedClass);
                            }
+
+                           validateFieldSupplementalMetaData(fieldMetaData, qInstance);
                         }
                      }
                   }
@@ -2238,8 +2256,7 @@ 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/fields/QSupplementalFieldMetaData.java b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/fields/QSupplementalFieldMetaData.java
index 02b1fe02..c683a5bf 100644
--- a/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/fields/QSupplementalFieldMetaData.java
+++ b/qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/fields/QSupplementalFieldMetaData.java
@@ -22,6 +22,10 @@
 package com.kingsrook.qqq.backend.core.model.metadata.fields;
 
 
+import com.kingsrook.qqq.backend.core.instances.QInstanceValidator;
+import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
+
+
 /*******************************************************************************
  ** Base-class for field-level meta-data defined by some supplemental module, etc,
  ** outside of qqq core
@@ -29,9 +33,43 @@ package com.kingsrook.qqq.backend.core.model.metadata.fields;
 public abstract class QSupplementalFieldMetaData
 {
 
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   public boolean includeInFrontendMetaData()
+   {
+      return (false);
+   }
+
+
+
    /*******************************************************************************
     ** Getter for type
     *******************************************************************************/
    public abstract String getType();
 
+
+
+   /***************************************************************************
+    **
+    ***************************************************************************/
+   public void enrich(QInstance qInstance, QFieldMetaData fieldMetaData)
+   {
+      ////////////////////////
+      // noop in base class //
+      ////////////////////////
+   }
+
+
+
+   /*******************************************************************************
+    **
+    *******************************************************************************/
+   public void validate(QInstance qInstance, QFieldMetaData fieldMetaData, QInstanceValidator qInstanceValidator)
+   {
+      ////////////////////////
+      // noop in base class //
+      ////////////////////////
+   }
+
 }