Hello, does anyone knows how to add a new bank detail to a customer via REST API? or just tell me bank detail belong to which table in NetSuite? i can’t find it on document

They are in a custom record. Name is usually Entity Bank Details. May be different depending upon then EP in the account.

Do you know error below? if i put the value for the field custrecord_2663_parent_customer it’s will happen. But if i dont put that field, the bank detail info not belong to any customer

try asking in #C2K2RJNAC (fromwhat I can see you need to have a customer value.