I have been trying to validate WBS element entries by using an RFC call to a FM on the back-end. However, I keep getting short dumps on the back-end system with 'Statement "MESSAGE E" is not allowed in this form.' message. The custom back-end FM calls one of the CPJN FMs like CONVERSION_EXIT* that deal with WBS elements.
So, I tried changing the custom FM to use the data element that does a the conversion instead of the FM. Now, I get a short dumps on the front-end with CALL_FUNCTION_REMOTE_ERROR with 'Key does not correspond to mask: B/0000-XXXXXXX.0.0.0' message.
Has anyone been successful without duplicating the CONVERSION_EXIT* FMs in order to validate a WBS element entry remotely?
Thank you in advance for any assistance.