Deleting old Support Desk messages in SAP-CRM.

Unfortunately it is not that easy to delete old Support Desk messages.As you know every message consists of two messages in reality. The CRM message has to be archived using transaction SARA. The archiving object
is CRM_SERORD. The basis messages cannot be archived because there is no archiving object existing for them. What you can do is to set the deletion flag (status I0076) for every message you do not need any more.
Afterwards you can use report Z_DELETE_BASIC_NOTIFICATIONS provided in the attached note: #566225 Report to delete the basis notifications with deletion flag for CRM test messages alternatively the report CRM_ORDER_DELETE can be used with the following restriction.
Deleting of CRM message with report "crm_order_delete" works only if the item of the CRM message (with exists in the background without being displayed) is not released. But if you are using transactiontype SLF1
for the CRM message the status 'Released' is set for the item as soon as you set the status 'In process' for the message. As 'Completed' is a follow-up status of status 'In process' you cannot delete the CRM messages  anymore using the report.
To set the deletion flag for the basic notification you have to use transaction DNOTIFWL. Here you have to set the status 'complete notificattion' so that it is set to completed. Afterwards you can set the status 'Mark for
deletion' at the same place.