Issue with Name replication of BP from CRM to ECC

BP is replicating to ECC with no errors but the first name and last name are getting concatenated in the field NAME1 of table KNA1.

I want first name to go in NAME1 and lastname in NAME2.

On debug i found PI_BP_PROXY_BAPI_CUSTOMER is getting called of ECC which further calls PI_BP_MAP_PERSON_DATA_RI where name is getting concatenated.

Kindly help me with the solution. I would prefer a sap note if applicable to this situation.

Thanks,

Ritu