I created the Datasource(3FI_SL_LC) for the special purpose ledger LC. After that I want to make a simple adjustment posting in the FI-SL application by posting data to my LC ledger. So I called the transaction GB01 and entered the details in the initial screen. When I press enter after finishing ,I am getting the error message as 'No ledgers assigned'. I don't know what to do. please give me details to proceed.