runman1999

SAP provides a couple of programs to clean up the outbox. RSSOAPUT requires an archiving system and can do a systematic delete. RSSODLIN deletes all outbound messages for a given user. The last option is for users to delete their own messages:

After the deletes are run, you will need to run the following programs on a 46C system:

1) RSSODFRE
2) RSSORE02
3) RSSORE00

On a 620 system:

1) RSSODFRE
2) RSBCSRE03
3) RSSORE00

I don't have experience with other SAP releases. You can do a note search on SAP and get more information about these programs.