Shopify does not hold inventory when you send a draft invoice, so those units can still sell on the storefront. Invoice Hold reserves the line items when the invoice is sent and sets an expiry. If the customer completes the draft, Shopify turns it into an order. If it expires first, stock returns to the storefront. You still create drafts in Shopify Admin. Invoice Hold only holds promised units so they cannot sell twice. Use it for quotes, wholesale invoices, and net terms.

• Reserves inventory when you send a draft invoice, not on every test draft.
• Set a default expiry, then change the date and time on any hold.
• See draft name, quantity, time left, and Held, Paid, Expired, or Error.
• Release a hold early. Unpaid stock returns to the storefront at expiry.
• Turn auto-hold on or off. Default duration is 24, 72, or 168 hours.