Troubleshooting: 502 Error Page in Custom Submit Action

When working with Adaptive Forms (Core Components), you may encounter a 502 error page HTML after submitting a form that uses a custom submit action.

Issue

Error: A 502 error page HTML is displayed when a custom submit action service fails.

Reason: This happens if the custom submit action throws an unhandled error, for example, null pointer, invalid API response, or runtime failure.

Resolution

To prevent the 502 error page, wrap submission logic with try-catch blocks to gracefully handle errors.

For detailed steps, see Create a custom submit action for Adaptive Forms (Core Components).