https://userapps.support.sap.com/sap/support/knowledge/en/3078052
3078052 - Error "Posting date must be after YYYY/MM/DD" Occurs in GR/IR Clearing
Error "Posting date must be after YYYY/MM/DD" in Goods Receipt and Invoice Receipt Clearing (GR/IR Clearing). For example, when executing GR/IR Clearing of...