Items in Purchase Orders Billed in Zoho Inventory are increasing stock in Shopify before they are received.

Items in Purchase Orders Billed in Zoho Inventory are increasing stock in Shopify before they are received.

When I create a PO in Zoho and have it billed, the quantity of items in my Shopify store increases before the items are actually received so I end up having double the items in my Shopify store. Seems like the accounting stock and physical stock are seen as different with the Shopify integration.  Is there a solution for this?