diff --git a/packages/appsync-modelgen-plugin/src/__tests__/visitors/__snapshots__/appsync-dart-visitor.test.ts.snap b/packages/appsync-modelgen-plugin/src/__tests__/visitors/__snapshots__/appsync-dart-visitor.test.ts.snap
index 542a3a4b8..68dfb40a5 100644
--- a/packages/appsync-modelgen-plugin/src/__tests__/visitors/__snapshots__/appsync-dart-visitor.test.ts.snap
+++ b/packages/appsync-modelgen-plugin/src/__tests__/visitors/__snapshots__/appsync-dart-visitor.test.ts.snap
@@ -11759,14 +11759,14 @@ class Foo extends amplify_core.Model {
       key: Foo.BAR1,
       isRequired: false,
       ofModelName: 'Bar',
-      associatedKey: Bar.BAR1ID
+      associatedKeys: [Bar.BAR1ID]
     ));
     
     modelSchemaDefinition.addField(amplify_core.ModelFieldDefinition.hasOne(
       key: Foo.BAR2,
       isRequired: false,
       ofModelName: 'Bar',
-      associatedKey: Bar.BAR2ID
+      associatedKeys: [Bar.BAR2ID]
     ));
     
     modelSchemaDefinition.addField(amplify_core.ModelFieldDefinition.nonQueryField(
@@ -12386,7 +12386,7 @@ class Primary extends amplify_core.Model {
       key: Primary.RELATED,
       isRequired: true,
       ofModelName: 'Related',
-      associatedKey: Related.PRIMARYTENANTID
+      associatedKeys: [Related.PRIMARYTENANTID, Related.PRIMARYINSTANCEID, Related.PRIMARYRECORDID]
     ));
     
     modelSchemaDefinition.addField(amplify_core.ModelFieldDefinition.nonQueryField(
@@ -13057,7 +13057,7 @@ class Primary extends amplify_core.Model {
       key: Primary.RELATED,
       isRequired: false,
       ofModelName: 'Related',
-      associatedKey: Related.PRIMARYTENANTID
+      associatedKeys: [Related.PRIMARYTENANTID, Related.PRIMARYINSTANCEID, Related.PRIMARYRECORDID]
     ));
     
     modelSchemaDefinition.addField(amplify_core.ModelFieldDefinition.nonQueryField(
@@ -13648,7 +13648,7 @@ class SqlPrimary extends amplify_core.Model {
       key: SqlPrimary.RELATED,
       isRequired: true,
       ofModelName: 'SqlRelated',
-      associatedKey: SqlRelated.PRIMARYID
+      associatedKeys: [SqlRelated.PRIMARYID]
     ));
     
     modelSchemaDefinition.addField(amplify_core.ModelFieldDefinition.nonQueryField(
@@ -14170,14 +14170,14 @@ class Primary extends amplify_core.Model {
       key: Primary.RELATEDMANY,
       isRequired: false,
       ofModelName: 'RelatedMany',
-      associatedKey: RelatedMany.PRIMARYID
+      associatedKeys: [RelatedMany.PRIMARYID]
     ));
     
     modelSchemaDefinition.addField(amplify_core.ModelFieldDefinition.hasOne(
       key: Primary.RELATEDONE,
       isRequired: false,
       ofModelName: 'RelatedOne',
-      associatedKey: RelatedOne.PRIMARYID
+      associatedKeys: [RelatedOne.PRIMARYID]
     ));
     
     modelSchemaDefinition.addField(amplify_core.ModelFieldDefinition.nonQueryField(
@@ -14932,7 +14932,7 @@ class SqlPrimary extends amplify_core.Model {
       key: SqlPrimary.RELATED,
       isRequired: false,
       ofModelName: 'SqlRelated',
-      associatedKey: SqlRelated.PRIMARYID
+      associatedKeys: [SqlRelated.PRIMARYID]
     ));
     
     modelSchemaDefinition.addField(amplify_core.ModelFieldDefinition.nonQueryField(
diff --git a/packages/appsync-modelgen-plugin/src/visitors/appsync-dart-visitor.ts b/packages/appsync-modelgen-plugin/src/visitors/appsync-dart-visitor.ts
index d584fe524..b2c20d1f6 100644
--- a/packages/appsync-modelgen-plugin/src/visitors/appsync-dart-visitor.ts
+++ b/packages/appsync-modelgen-plugin/src/visitors/appsync-dart-visitor.ts
@@ -1006,24 +1006,36 @@ export class AppSyncModelDartVisitor<
         else if (field.connectionInfo) {
           const connectedModelName = this.getNativeType({ ...field, isList: false });
           switch (field.connectionInfo.kind) {
-            case CodeGenConnectionType.HAS_ONE:
+            case CodeGenConnectionType.HAS_ONE: {
+              let associatedString = `associatedKey: ${connectedModelName}.${this.getQueryFieldName(field.connectionInfo.associatedWith)}`;
+              if (field.connectionInfo.isUsingReferences) {
+                const associatedFieldsString = field.connectionInfo.associatedWithFields.map(field => `${connectedModelName}.${this.getQueryFieldName(field)}`).join(', ')
+                associatedString = `associatedKeys: [${associatedFieldsString}]`
+              }
               fieldParam = [
                 `key: ${modelName}.${queryFieldName}`,
                 `isRequired: ${!field.isNullable}`,
                 `ofModelName: '${connectedModelName}'`,
-                `associatedKey: ${connectedModelName}.${this.getQueryFieldName(field.connectionInfo.associatedWith)}`,
+                associatedString,
               ].join(',\n');
               fieldsToAdd.push([`${DART_AMPLIFY_CORE_TYPES.ModelFieldDefinition}.hasOne(`, indentMultiline(fieldParam), ')'].join('\n'));
               break;
-            case CodeGenConnectionType.HAS_MANY:
+            }
+            case CodeGenConnectionType.HAS_MANY: {
+              let associatedString = `associatedKey: ${connectedModelName}.${this.getQueryFieldName(field.connectionInfo.associatedWith)}`;
+              if (field.connectionInfo.isUsingReferences) {
+                const associatedFieldsString = field.connectionInfo.associatedWithFields.map(field => `${connectedModelName}.${this.getQueryFieldName(field)}`).join(', ')
+                associatedString = `associatedKeys: [${associatedFieldsString}]`
+              }
               fieldParam = [
                 `key: ${modelName}.${queryFieldName}`,
                 `isRequired: ${!field.isNullable}`,
                 `ofModelName: '${connectedModelName}'`,
-                `associatedKey: ${connectedModelName}.${this.getQueryFieldName(field.connectionInfo.associatedWith)}`,
+                associatedString,
               ].join(',\n');
               fieldsToAdd.push([`${DART_AMPLIFY_CORE_TYPES.ModelFieldDefinition}.hasMany(`, indentMultiline(fieldParam), ')'].join('\n'));
               break;
+            }
             case CodeGenConnectionType.BELONGS_TO:
               fieldParam = [
                 `key: ${modelName}.${queryFieldName}`,