WEB_ASYNC_CB_RC_ENUM

Asynchronous functions return values:

Code Description
WEB_ASYNC_CB_RC_OK

The function succeeded.

WEB_ASYNC_CB_RC_ABORT_ASYNC_NOT_ERROR The function succeeded. However, the entire Asynchronous Conversation, including the current task, should be stopped immediately after the return from the function.
WEB_ASYNC_CB_RC_ABORT_ASYNC_ERROR The function failed. The entire Asynchronous Conversation, including the current task, should be stopped immediately after the return from the function.

Implement your callback function so that if it does not return WEB_ASYNC_CB_RC_OK, it issues a message before returning. The message explains the reason for stopping the conversion.