Restricting Pick Release Allocation to a specific locator based on Customer

Summary:

We have Customers grouped either as B2B or B2C. The stock within FG Sub inventory in the Warehouse is segregated under B2B and B2C Locators. We would like Oracle not to allocate B2C stock for a B2B Order or B2B Stock for B2C Order.

For example, we have a stock of 50 Each of SKU 12345678 in FG under B2C Locator and no stock under B2B Locator. Sales Order SO01 is created for a B2B Customer. When this Order is Pick Released we find that the stock under B2C Locator gets allocated to the Order. We would ideally like to get this Order Line back ordered as there is no stock within B2B Locator.