Internal Order settlement issue - G/L account cannot be created as a cost element

 Pls check the below error i am getting while settling the internal order.

Gl account 40101001 is created as cost element.

Solution :-

Please go to transaction code OKG8 (define posting rules for settlement to FA), against the RA category WIPR/RUCR for your company code, under P&L account, you have assigned a GL account which is created as cost element, which is not correct.

The GL account that you assign under P&L account for RA should not be created as cost element. So, if no postings are done, delete cost element for the GL account. If already postings are done to the respective GL accounts, you are not allowed to delete its cost element. So, assign another GL account which is not created as cost element (it should be of P&L account nature only, not B/S account)