https://userapps.support.sap.com/sap/support/knowledge/en/3304686
3304686 - WB07 / WB08 transactions are obsolete and can no longer be used AO557 | SAP Knowledge...
You did a system conversion to S/4 HANA, or: 605 SAPKH60519 606 SAPKH60624 616 SAPKH61614 617 SAPKH61719 618 SAPK-61813INSAPAPPL Or Any higher system release...