I propose that in the P&L budget plan, you should use the template file has been sent by me to you.
For some of the columns. I have more details as follows.
1. Cost center: The cost center to plan budget cost.
2. Source CCA : Sender Cost center from allocation and used in Internal order(IO by department) Plan.
In template you can edit. after you revise ,please advise to your staff use it.
In the next step, I can run macros from this template to create text file for upload.