I have a question regarding contracts & internal catalog.
We have a Contract 1 for product category A to Vendor 1
We have Material 1 with fixed source of supply Vendor 2 in our internal catalog.
When a user buys "Material 1" from internal catalog with fixed supplier "Vendor 2" the vendor is changed to contract 1 vendor "Vendor 1".
My question is, is this standard behaviour? Does product category contract vendor take precedence over internal catalog fixed supplie?