An error message display when I select Project accounting of Code Part Function and save. The error message is written about General Ledger is necessary to choose Project accounting. IFS PRD environments and Development environments have not installed General Ledger yet, But their environments will apply General Ledger.

Can IFS work without the error in this case if I select Project accounting of Code Part Function after applying General Ledger?  

Also, Are there other function impact by installed General Ledger?  

PRD environments have been starting to use from 24th March, so the customer hope to know answer as soon as possible.