diff --git a/packages/nc-gui/components/webhook/Editor.vue b/packages/nc-gui/components/webhook/Editor.vue
index 98a7cf8537..eb01b0d50d 100644
--- a/packages/nc-gui/components/webhook/Editor.vue
+++ b/packages/nc-gui/components/webhook/Editor.vue
@@ -225,7 +225,7 @@ function onNotTypeChange(reset = false) {
   }
 
   if (hook.notification.type === 'Slack') {
-    slackChannels.value = (apps.value && apps.value.Slack && apps.Slack.parsedInput) || []
+    slackChannels.value = (apps.value && apps.value.Slack && apps.value.Slack.parsedInput) || []
   }
 
   if (hook.notification.type === 'Microsoft Teams') {
diff --git a/packages/nocodb-sdk/src/lib/Api.ts b/packages/nocodb-sdk/src/lib/Api.ts
index b3ca3a64b4..6e7af05297 100644
--- a/packages/nocodb-sdk/src/lib/Api.ts
+++ b/packages/nocodb-sdk/src/lib/Api.ts
@@ -1716,7 +1716,7 @@ export interface PluginReqType {
 export interface PluginTestReqType {
   /** Plugin Title */
   title: string;
-  /** Plugin Input */
+  /** Plugin Input as JSON string */
   input: string;
 }
 
diff --git a/packages/nocodb/src/schema/swagger.json b/packages/nocodb/src/schema/swagger.json
index b656a26dcb..f89002758e 100644
--- a/packages/nocodb/src/schema/swagger.json
+++ b/packages/nocodb/src/schema/swagger.json
@@ -12728,8 +12728,15 @@
             "description": "Plugin Title"
           },
           "input": {
-            "type": "string",
-            "description": "Plugin Input"
+            "oneOf": [
+              {
+                "type": "string",
+                "description": "Plugin Input as JSON string"
+              },
+              {
+                "description": "Plugin Input"
+              }
+            ]
           }
         },
         "required": ["title", "input"]