Regarding Stock inventory for Variation Product
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In Woo commerce i have variation products like 20 count, 50 count, 200 count and in this when customer purchase 200 count we call it case i want inventory to update and deduct 10 boxes from 20 count for ex: if 20 count have 100 stock and when customer purchase 1 (200 count) case i need inventory to update automatically and i show 90 stock. How to make this work in woocommerce ?
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