BDoc validation error

Hi,

We are trying to replicate the BP from CRM to ECC and I see that there are quite a lot of BDoc messages in the error status. The below are the details of the error that we are having:

Error: Partner xxxxxxxxxxxxxxx): the following errors occurred

Warning: Partner data processed with key PartnerGUID 4C03874EA4DC9257E1000000AC141574

Warning: Partner data processed with key PartnerID xxxxxxxxxxxxxx

Error: Business partner with GUID 4C03874EA4DC9257E1000000AC141574 does not exist

Error: Validation error occurred: Module CRM_BUPA_MAIN_VAL, BDoc type BUPA_MAIN.

Please let me know what should I do to fix this. Appreciate your help.

Thanks,

SB