Stop Purchase Order creation via a user exit...
I have a requirement to display an error and hold the PO creation when a material in PO doesn't have a planned price. I used the enhancement MM06E005 and EXIT_SAPMM06E_012 within that. I checked the material planned price and passed an error message depending on the result. But me21n gives user a option of holding data instead of stopping on error message. Is there anyway of keeping users from saving POs under this condition?