Summary:

We suggest to improve the error message for users trying to publish an app version that already exists and is awaiting approval. The current message is unclear and doesn't help users understand what to do next. 

To improve user experience and clarity, I suggest the following enhancements:

1. Clearer Error Message: Update the error message to explicitly inform users that the version they are trying to publish already exists and is pending approval. This will help users understand the exact issue.
2. Guidance on Next Steps: Include instructions on what users should do next. This could involve waiting for the current version to be approved or contacting support for further assistance.
3. Notification System: Consider implementing a notification system that sends an email or message to users when an extra round of approval is required. This proactive communication can prevent confusion and reduce unnecessary attempts to publish the same version.