Hi,
Open the PO in ME23N and check whether the message type still showing in the messages tab! If its not there,
- Check whether there is any update termination in SM13. If so, analyze the update termination.
- Go to ME22N - open the PO and go to messages tab. Now, go to Menu - Go to - Determination Analysis and check why the message was not triggered / saved.
- While creating PO, go to determination analysis and check whether the conditions triggered is based on any partner. If so, check whether there is any partner determination at the time of save - as shown below in partner function configuration:
Regards,
AKPT