Hello Fernando Espitia
Please first identify field which are mandatory, from error message it looks customer (BP) general data address field which could be mandatory at ECC. BP replication should work the maintaining values for these fields.
8349 - Create FI customer: FI screens appear without message
- SAPMF02D 0111 Cust.master: General data, CAM address, communication
Hope this is helpful.
Regards,
Arjun