Update Marketing attributes of a BP

Hi Experts,

In an assignment, I need to update the marketing attributes of a BP. I am using the FM CRM_MKTBP_ASSIGN_ATTRIBUT_TAB to insert a marketing attribute to a BP. But if I use the same FM to update the already assigned marketing attribute of a BP, the system throws a dump.

Please let me know how can I avoid this dump. Is there any other FM I can use to insert/update a marketing attribute which handles this exception.

I also thought of an approach to first check if the marketing attribute is already maintained for a BP, if yes, then don't update the BP. But this approach is too performance hampering.

Any pointers to the solution would be highly appreciated.

Regards,

Saumya