I am working on Part 11 Profit and Loss reports and I am on the part of the activity where I am supposed to add formulas into the REP03 Line Items, but every time I copy and paste the exact formula in it fails with this notification. I have double checked and all of my line items are spelled correctly and there on my DATA01 module. It is giving me this notification for every formula I have to put in for REO03 except for the ones that aren't referencing DATA01. I will attach a photo of my DATA01 module as well.
Your Module name is 'DATA01 P&L Actuals and Budget' but your formula mentions 'DATA01 P&L Actuals & Budget'. You are using ampersand instead of and. To avoid such issues, try referencing by clicking on the line item you want to reference (I guess the other solution on this thread is explaining that)