Skip to Content
avatar image
Former Member

How to Change a PR within a work order

Does anyone happen to know a method for being able to change the MRP created Purchase Requisition while in the order?

As part of our routers we create a "External Process" operation with a PP02 control key. With an information record created this will automatically create a purchase requisition for the operation and schedule it.

The problem is that from within the order you can only perform limited changes to the created PR. If you double click on the control key you can get to the requisition information by going to the "Ext Processing" tab. At the bottom of this tab you can directly access the PR itself by clicking on the "Purch. Requisition" button. This takes you into a partially configure ME53N but you cant enter into change mode like you could using a normal ME53N T-code. My users of this requisition need to be able to change several fields before forwarding the request but as of right now they have to exit the order and open the requisition by direct use of the ME52N or ME53N.

Anyone encountered and overcome this?

Gordon E. Weddle

SAP Analyst

Add comment
10|10000 characters needed characters exceeded

  • Get RSS Feed

2 Answers

  • Dec 31, 2014 at 03:58 AM


    As far I know this is standard design of the system from production order you can able to only display the PR.

    For changes you need to open new session in new window because at a time we can not block two objects.


    Add comment
    10|10000 characters needed characters exceeded

    • Former Member


      Thank You, I was wishing that perhaps it was just our folks were not aware of a fix. If I can't find a fix then we will just use ME5A to reopen and do changes.

  • Dec 31, 2014 at 06:42 AM

    Hello Gordon,

    This standard SAP system design, however you could explore the user exit COZF0001

    With this customer enhancement you can change the purchase request that

    results from an externally processed operation. Call funstion 'ME_READ_REQUISITION_EXT'

    Best Regards,


    Add comment
    10|10000 characters needed characters exceeded

    • Former Member


      Thank You. We are also looking into user exit for forcing import of price and vendor at save. I will investigate the one you recommended as well.