https://userapps.support.sap.com/sap/support/knowledge/en/2945995
2945995 - XREF1, XREF2 and XREF3 are not updated/filled after bank statement file return is...
Fields BSEG-XREF1, BSEG-XREF2, and BSEG-XREF3 are not updated after upload bank statment file at Brazilian scenarios.