diff --git a/client/src/components/Workflow/Run/WorkflowRun.vue b/client/src/components/Workflow/Run/WorkflowRun.vue
index 302ff86bba2..d9d93e8e086 100644
--- a/client/src/components/Workflow/Run/WorkflowRun.vue
+++ b/client/src/components/Workflow/Run/WorkflowRun.vue
@@ -54,6 +54,9 @@ const hasStepVersionChanges = ref(false);
 const invocations = ref([]);
 const simpleForm = ref(false);
 const disableSimpleForm = ref(false);
+const disableSimpleFormReason = ref<
+    "hasReplacementParameters" | "hasDisconnectedInputs" | "hasWorkflowResourceParameters" | undefined
+>(undefined);
 const submissionError = ref("");
 const workflowError = ref("");
 const workflowName = ref("");
@@ -115,24 +118,24 @@ async function loadRun() {
             // on the frontend. If these are implemented on the backend at some
             // point this restriction can be lifted.
             if (incomingModel.hasReplacementParametersInToolForm) {
-                console.log("cannot render simple workflow form - has ${} values in tool steps");
                 simpleForm.value = false;
                 disableSimpleForm.value = true;
+                disableSimpleFormReason.value = "hasReplacementParameters";
             }
             // If there are required parameters in a tool form (a disconnected runtime
             // input), we have to render the tool form steps and cannot use the
             // simplified tool form.
             if (incomingModel.hasOpenToolSteps) {
-                console.log("cannot render simple workflow form - one or more tools have disconnected runtime inputs");
                 simpleForm.value = false;
                 disableSimpleForm.value = true;
+                disableSimpleFormReason.value = "hasDisconnectedInputs";
             }
             // Just render the whole form for resource request parameters (kind of
             // niche - I'm not sure anyone is using these currently anyway).
             if (incomingModel.hasWorkflowResourceParameters) {
-                console.log(`Cannot render simple workflow form - workflow resource parameters are configured`);
                 simpleForm.value = false;
                 disableSimpleForm.value = true;
+                disableSimpleFormReason.value = "hasWorkflowResourceParameters";
             }
         }
 
@@ -260,6 +263,7 @@ defineExpose({
                         :model="workflowModel"
                         :can-mutate-current-history="canRunOnHistory"
                         :disable-simple-form="disableSimpleForm"
+                        :disable-simple-form-reason="disableSimpleFormReason"
                         @submissionSuccess="handleInvocations"
                         @submissionError="handleSubmissionError"
                         @showSimple="advancedForm = false" />
diff --git a/client/src/components/Workflow/Run/WorkflowRunForm.vue b/client/src/components/Workflow/Run/WorkflowRunForm.vue
index 846388bfa85..b6db1eb7789 100644
--- a/client/src/components/Workflow/Run/WorkflowRunForm.vue
+++ b/client/src/components/Workflow/Run/WorkflowRunForm.vue
@@ -26,6 +26,21 @@
                     @onClick="onExecute" />
             </div>
         </div>
+        <BAlert v-if="disableSimpleFormReason" show variant="warning">
+            This is the legacy workflow run form.
+            <span v-if="disableSimpleFormReason === 'hasReplacementParameters'">
+                This workflow contains parameters in tool steps that require advanced handling. The simplified form does
+                not support these parameters.
+            </span>
+            <span v-else-if="disableSimpleFormReason === 'hasDisconnectedInputs'">
+                One or more tools in this workflow have required inputs that are not connected to other steps. The
+                simplified form cannot handle disconnected runtime inputs.
+            </span>
+            <span v-else-if="disableSimpleFormReason === 'hasWorkflowResourceParameters'">
+                This workflow is configured with resource request parameters. The simplified form does not support
+                workflows with resource options.
+            </span>
+        </BAlert>
         <FormCard v-if="wpInputsAvailable" title="Workflow Parameters">
             <template v-slot:body>
                 <FormDisplay :inputs="wpInputs" @onChange="onWpInputs" />
@@ -108,6 +123,10 @@ export default {
             type: Boolean,
             default: false,
         },
+        disableSimpleFormReason: {
+            type: String,
+            default: undefined,
+        },
     },
     data() {
         return {