PR should not change after PO generation

[Former Member]

Dear gurus,

when i create a PR from cj20n/cn22 with qty and rate and do the PO against that PR. Having created PO against the PR system is allowing us change the data in the PR(like Qty, Rate..etc.).but the requirement in my project once the PR is converted into PO system should not allow us to do any changes in the PR. please help us in controlling this.

thanks

[Former Member]

This can not be control by user exit. You have to take Abaper's help to disble the screen qty for modify from enhancement provided by SAP in ecc 6.0. If you have lower version then original screen has to be modified taking sap key for modification

[Former Member]

Hi,

You will have to do development using exit CNEX0009.

Regards