diff --git a/ayanova/src/api/gzform.js b/ayanova/src/api/gzform.js
index 4ccd5655..a3037612 100644
--- a/ayanova/src/api/gzform.js
+++ b/ayanova/src/api/gzform.js
@@ -101,6 +101,9 @@ function getErrorsForField(vm, ref) {
       //so we need to normalize them all to lower case to match
       //they will always differ by more than case so this is fine
 
+      //NOTE: Indexed child collection error target field names are in this scheme "Items[2].FieldName"
+      //where Items is the name of the parent models property that contains the child collection
+
       return o.target.toLowerCase() == ref.toLowerCase();
     });
   }
diff --git a/ayanova/src/views/inv-purchase-order.vue b/ayanova/src/views/inv-purchase-order.vue
index 7809fd09..975cb324 100644
--- a/ayanova/src/views/inv-purchase-order.vue
+++ b/ayanova/src/views/inv-purchase-order.vue
@@ -233,6 +233,7 @@
               hide-default-footer
               data-cy="itemsTable"
               dense
+              :item-class="rowClasses"
             >
               <template v-slot:top>
                 <span class="title">{{ $ay.t("PurchaseOrderItemList") }}</span>
@@ -323,7 +324,7 @@
                     :label="$ay.t('Part')"
                     ref="Items.PartId"
                     data-cy="Items.PartId"
-                    :rules="[form().required(this, 'Items.PartId')]"
+                    :rules="[form().required(this, 'Items.PartId')]"                    
                   ></gz-pick-list>
                 </v-col>
                 <v-col cols="12" sm="6" lg="4" xl="3">
@@ -847,6 +848,13 @@ export default {
     }
   },
   methods: {
+    rowClasses: function(item, index) {
+      console.log("row_classes", { item: item });
+      //if item.index in errors collection then highlight the row
+      // if (item.calories < 200) {
+      //   return "orange"; //can also return multiple classes e.g ["orange","disabled"]
+      // }
+    },
     editItem: function(item) {
       this.editPoItemIndex = item.index;
       this.editPoItemDialog = true;