
You can use transaction FP06 to execute manual account maintenance.
You can have the system automatically create a clearing proposal for you (results can be edited), or you may create and modify the proposal manually (often necessary when processing partial payments).

On the initial screen for account maintenance, you can select open items.
On the processing screen, you can change or add items to this selection and include other contract accounts or business partners.
Items allocated to the proposal from clearing control are already active.
However, you can change the allocation and ignore the proposal.

Depending on the selected debit and credit amounts, the account maintenance posting can either result in a full clearing, a partial clearing, or an overpayment.