Word Order pick slip is not generated from particular sub-inventory

Summary:

Example:

WO: 123456

FG : Item-A

Comp: C1, C2

Supply Sub-Inventory: MFG

Stock available sub-inventory list: RW, Stores, WIP.

When we run the pick release for this WO; it's generates the pick slip to pick confirm from 'RW' instead of WIP, this is due to picking rule criteria.

Questions:

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How can I make sure that pick slip generated to pick material from WIP instead of RW?

How can I restrict to pick material from particular sub-inventory for given Word Order?

This is very important because we do not want to get picked from any other sub-inventory;

Thanks

Shivana