BADI for CRM_MKTPL

Hi everyone,

I want a BADI for transaction CRM_MKTPL that, when I push save bottom execute the BADI. I try with others interfaces (IF_EX_CRM_MKTPL) but they have many methods and they execute many times quen push "SAVE" (I want that only execute one time, becase y want to do an insert into a Z-table)

Thanks