I have “Activate direct postings to Contracts” in configuration and I have used transaction ME31K to create contracts. I have created both Value and Quantity related Contracts. This all seems to be working fine. I go to post the Invoice and the new tab “Contract Reference” is there. I am allowed to enter a Contract and the contract line items do appear. The issue is that the “Amount” and “Quantity” are both grayed out and not open for input. The only way I have found to be able to enter a different amount or quantity is to move to the right and click on the button to allow multiple account assignment. When this pop-up appears, I can change the amount or the quantity as well as any of the accounting assignments (GL, Cost Center etc.). Is this the way it is supposed to function or am I missing something in configuration? Can you not change the data as you can when posting any other Invoice? I have been searching for a better way but have not had any luck. Any help would be greatly appreciated.