Hi Tamil
I assume you have checked the notes I mentioned before
Check the Vendor Number Range as well .
https://scn.sap.com/thread/1908625
Check if the BADI BBP_DOC_CHANGE was implemented for quote?
BAdi BBP_DOC_CHANGE_BADI
Try to deactivate the BADIs and then check . Try with all BADis one by one
1303125 - Deactivate the quot BAdi implementation BBP_DOC_CHANGE_BADI
If nothing works . Raise to SAP ![]()
Regards
Vinita