Diagnosis
This message details a program control option.

System Response
In real estate management you want to pay all invoices that relate to acontract together.
You need to be able to do this because for the business partner(landlord of an object) the internal distribution of an invoice he hasissued for these various items is unknown, and consequently thisdistribution should not have any effect on the payment.
The ISR payment method used in Switzerland, however, requires theindividual payment of invoices. This requirement has been met in thepayment program where invoices with the same ISR reference for a paymentare grouped, so that separate payments are only made where the ISRnumbers are different.
For each vendor, all items are grouped that have been posted to a realestate contract with contract type '9' (real estate general contract),that have the same due date (baseline payment date), and also the sameISR reference and ISR number.
If a payment is to be made additionally separated according tocontracts, payment grouping has to be used for the vendors concerned.

Procedure
If you assign this system message the active message type 'W', the itemsdetailed are grouped. If the message has a different type, no groupingis made.
INCLUDE CUSTOMIZED_MESSAGE_INFO OBJECT DOKU ID TX