We have requirement in to add listing & exclusion based on Base Material PMATA. I have added PMATA field in Structure and new table also created.
Table has created with combination id " Customer / Base Material / Description) .
Now requirement is when ever we enter material in sales order listing need to check based on Base material value from the condition table. if both value is different error message need to display. Bur right now its happen.
I understand we need implement the user exit to populate value but whether how can i check based on base material with customer in the item leavel. Please let me know how to handle this issue..