There is a possibility that the reimbursement claim is received before the actual reimbursement authorization. This transaction can be used to send a message to the issuing bank and request for authorization.
To create a new Reimbursement contract, RMTPOP transaction is used.
If the checkbox Reserved Contract is checked, the transaction refers to a reference number reservation and when the checkbox is unchecked, it refers to a actual contract reference.
Select it from the menu item[Other Products -> Reimbursement -> Main ->Pre-Open Authorization].
When you have made your changes, click on the ( ) Save function to save all the the data entered in the transaction to the database.