Deletion of PR can be done using ME52N
This is only possible provided that no purchase order have been assigned. If po has been created, you can only Flag for Deletion.
To delete the pr, select the line(s) you wish to delete and then click on the dustbin icon.
How to delete the purchase requisitions created through MRP?
Normally, the deletion of such MRP run PRs can be done in the next MRP run as soon as there is any MRP-relevant changes in the stock status of your related material.
It is not necessarily require to make any setting in MRP Group as this setting will be used in case you would like to make a more detailed control of your MRP run process.
The setting of Plant parameters via Transaction OMI8 represents the combination of various settings under Consumption-Based Planning (for instance, the setting of MRP Controller in OMI8 is exactly the same as in Transaction OMD0).
Therefore, if you have already set such parameters in other transactions, then you don't need to perform again in OMI8 Transaction.
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