Process controlled Workflows
https://help.sap.com/docs/SAP_SUPPLIER_RELATIONSHIP_MANAGEMENT/5cd86364e18a49c6a01a79557b61416a/b5ac2d308f154a7bb1bc60c98b6fa1d9.html
https://help.sap.com/docs/SAP_SUPPLIER_RELATIONSHIP_MANAGEMENT/5cd86364e18a49c6a01a79557b61416a/9bae551afc1c45b18731951083d7d6d1.html
BADI:
/SAPSRM/BD_WF_PROCESS_CONFIG