SAP Message TU206 - Cannot create BB plan for contract &1 - amount is 0

Diagnosis The budget billing plan of contract &V1& cannot be created because theamount calculated per due date is 0. Procedure Check the extrapolation document of billing &V2& to see if billing lineitems relevant to budget billing and posting have a net amount of 0. Ifthis is the case, check the period consumption of the contract or ofthe installation (using Transaction EL56) and adjust it if necessary.If the amount is not 0 and the period consumption is correct, contactSAP.