Hi,
First check the schedule line category determined in your Individual Purchase order .
Then check the Requirement type in the procurement tab in your order. Cross Check the same with requirement class in OVZH transaction .
An account assignment category will be assigned for the requirement class in OVZG transaction.Remove that "E" in the account assignment category and recheck the scenario by creating a new cycle and confirm.
Revert for any clarification.
Regards,
SRK