Posting a Standing Request 
You use this function to post Standing Requests .
The standing request document must have been released.
Once a standing order is posted, you can use the Generate posting documents program to generate acceptance or payment requests from the standing request master document.
Unlike "normal" requests, standing requests can also be changed, after they have already been posted. When you save the change, the program resets the document status "Document posted", "Released" and "Document complete". This means that the changed document must pass through the approval procedure again, before posting documents can be generated from it.
See also:
If you want to post a standing request, from the SAP menu, choose