GL Offset Field Blank in Posted Transaction (F03B11) – How to Enter the GLOffset Value?

In the F03B11 table, we have a posted transaction where we noticed that the GL Offset field is blank — which should not be the case. We want to correct this by entering the appropriate GL Offset value.

However, when we try to edit the record, the GL Offset field is not greyed out, but we’re unsure of the proper method to update it for a posted transaction.

Can you please advise on the correct way to enter or update the GL Offset in this scenario? Are there any specific programs or tools (e.g., P03B11, P0911, etc.) we should use, or is this something that requires a special update or workaround?