BP Replication from CRM to ECC as BPs

Hi All,

I have a requirement to replicate customers from CRM system to ECC as BPs means that need to be created in ECC table BUT000.

I enable below entries in ECC table COM_BUPA_CALL_FU

COM_BUPA_MAIN_BP_INBOUND --> CALL set to X

COM_BUPA_REL_BP_INBOUND --> CALL set to X

and initial  load works fine .

However I have issue when new customer is created in ECC ( as SD customer XD01 ) system it is replicating to CRM as BP but it s not replicated back from CRM to ECC to BUT000 table.

Can someone please suggest solution .