Two step picking

Hi Experts,

Right now we are using two step picking (WAVE). In that, any way to restrict partial picking for the warehouse request ?

For example warehouse request 1 contains material A , material B

Warehouse request 2 material A, material B

Suppose if there is no sufficient stock of material A, (it can be allocated only to WR1) , WR 2 should be rejected. But while doing wave release withdrawal, its combining qty of material B of warehouse 1 &2 and created WT for picking.

And mat A and mat B stored in different storage type

Could you help on this