The billing documents or budget billing items grouped into one invoicing unit are transferred to a posting document. The input parameters posting date and document date and the source keys R4 (for billing documents) and R5(for budget billing items) are stored in the document header. In invoicing the reconciliation key, which consists of an entry date, a source key, and a consecutive number, is assigned by the system and transferred to the document header.

• The business partner items are created from the billing line items of the billing document according to the grouping criteria contract, main transaction and tax code. The receivables accounts are determined using the contract information and the main transaction of the billing. The receivables account is stored in the business partner item. The G/L account items are grouped according to account assignment features. The revenue account is determined using the contract and the transaction. The tax is posted using a G/L account item.

• You can transfer the business partner items from the budget billing items. The transactions, and also the receivables account, tax, and tax amount, are already stored in the budget billing plan. The G/L account items are grouped according to account assignment features of the budget billing items. You determine the revenue account using the contract and the transaction. Post the tax using a G/L account item.