SAP C4C Business Partner integration with S4HANA over SAP PI

Hi guys,

we have integrated SAP C4C with SAP S4HANA (on-premise) through SAP PI.

When we try to replicate business partner from SAP C4C to S4HANA, we receive an error message "Enter a value for field SEARCHTERM1".

We have already tried to set this field as optional in S4HANA for the replicated business partner role through transaction BUCG, but to no avail. The "Search Term 1" field still stayed required.

Is it even possible to make this field not mandatory?