https://userapps.support.sap.com/sap/support/knowledge/en/2810232
2810232 - MRKO: Fields XBLNR and BVTYP - SAP ERP & SAP S/4HANA | SAP Knowledge Base Article
When using transaction MRKO to follow the Consignment Settlement process, fields Reference Document Number (XBLNR) and Partner bank type (BVTYP) are not filled...
https://userapps.support.sap.com/sap/support/knowledge/en/2983466
2983466 - Incorrect Partner Bank Type (BVTYP) is selected by Automatic Payment Program | SAP...
You did not specify partner bank type in invoice document but after run F110-proposal, system automatically updates REGUH-ZBVTY Incorrect Partner Bank Type...