SALES ORDER LINE TYPE ISSUE

Hi Team,

I am using JD9.1.

I have made the Line Type S1 with inventory interface B and line S2 with inventory interface C.

Now I am entering the sales order having two lines one with line type S1 and other with Line type S2.

For S1 we are getting the issue.

DetermineSOMBFPricing process failed.

For other line type S2 we are getting the issue that use the inventory interface other than C.

My question is why I m getting the issue of pricing Process failed and my other question is can we use Inventory interface of C for sales.