To be able to execute the Automatic Clearing programs and clear reversed invoices, you specify which accounts can be cleared. You do so in Customizing for Financial Accounting (FI) under  Accounts Receivable and Accounts Payable Business Transactions Open Item Clearing Prepare Automatic Clearing.

When the Automatic Clearing programs clear documents using the residual item method, they sort the items according to the settings that you make in Customizing for FI, under  Accounts Receivable and Accounts Payable Business Transactions Open Item Clearing Make Settings for Processing Open Items Choose Sort Fields.

The sort fields must include the following, in any order:

You can enable the system to select Contracts from other tables if you are not using the default table J_3FCNT when processing Notes to Payee automatically. You can do this in Customizing for FI, under  Accounts Receivable and Accounts Payable Business Transactions Country-Specific Settings Russia Business Add-Ins (BAdIs) BAdI: Modify Contract Selection for Customer Payment Solution .