Hello Karibasavaraj,
Please check the following points to ensure the vendor can be uploaded successfully.
In the CRM system:
1. In transaction CRMC_BUT_CALL_FU, for event BPOUT, the function VEND_MWX_CREATE_MAIN_BDOC must be active.
2. Check if there is filter for vendors in t-code SMOEAC.
In the ERP system:
1. In table CRMSUBTAB, the function COM_VEND_MAIN_INBOUND should be active for object VEND_MAIN of class BUPA for upload.
2. In transaction PIDV, the mapping between the CRM role categories for vendors and the corresponding ERP account group should be maintained correctly.
Hope my answer helps you resolving the issue.
Thank you.
Best regards,
Julin Xin