Hi,
Assuming this material requisition was to issue material, and the resulting posting was not previously sent to finance (not transferred) and the inventory was not aggregated, you can see the inventory transaction history and use the modify date applied. The modify date applied is only available If the transaction is in a state that allows this.
As a consultant, typically my suggestion would be create a manual voucher to accrue the expense and have that as an interim voucher, so the accrual will reverse the next month.
For most cases, you don’t find the issue (wrong period) until after the transaction processed past the point of no return. The manual voucher “always” works.
See below this posting a very similar posting that includes an image from IFS Cloud. That posting is marked as solved.
Best regards,