I have the same requirement - to map the field VBKD-SDABW with CRM bi-directionally.
I have created an AET field in CRM Quotation header shipping block. Now i m not able to map from CRM to ECC using the communication structure BAPE_VBKD and code in CRM Badi - CRM_DATAEXCHG_BADI.
Kindly let me know the steps or procedure to do so.
Thanks in advance.