Our client requests the functionality on Sales Order, when entering a product number, the system to suggest the alternative item. Something like a window pop-up with proposal of the other item, matched somewhere in the table as the substitute.
Product Proposal and Material exclusion lists are useless in this case. Variant configuration requires material tyle KMAT which is out of consideration.
Do you know any other way to do it? Preferably standard....
I think you can use Material Determination for this purpose.
You create a material determination record using T Code VB11. Material entered - Material determined - Substitution reaosn 0001.
If you need any other specific tables / access sequences you can use the condition technique for the material determination.
In the Substitution reasons definition ( T Code OVRQ) , for 0001 , in the column "Strategy" select A.
Now you can try processing an order and you will get the popup with selections