Square can create, email, edit and receive purchase orders, including partial deliveries. Start in Square Dashboard under inventory management and purchase orders. Access depends on your subscription, enabled advanced-inventory capabilities and team permissions.
This guide covers the native retail workflow and the operating checks that prevent a supplier order from becoming an incorrect stock balance. Square's current purchase-order instructions are the reference for account eligibility and changing menu labels.
Before the first order
Prepare the supplier contact, item variation, delivery location, quantity and price basis. Decide whether “one” means a case or a sellable unit. Square's current PO documentation supports whole-number ordering and receiving, with a maximum of 500 unique items per PO. A product requiring fractional quantities needs a deliberate unit convention or another supported workflow.
Example: six cases of four bottles represent 24 bottles. If the catalog tracks bottles, make the case conversion and cost basis clear before sending. Avoid discovering at receiving that the supplier interpreted the same quantity differently. Supplier item mapping explains the separate purchase and sell units.
Create and send the PO
In Square Dashboard, open Inventory management → Purchase orders, then create an order. Select the vendor and receiving location, add item variations, quantities and costs, review the expected delivery details, and save or send the order.
Square can email the PO to the vendor and provide a downloadable copy. Verify the address before sending and keep the order reference in subsequent messages. If the supplier uses a different ordering method, agree how the submitted order and Square record will stay aligned.
An item ordered from an existing vendor can be associated with that vendor and purchase cost. Review those associations when one sellable item has several sources; the purchase terms still need checking for the actual supplier selected.
Use alerts to start a review
Square low-stock alerts use a configured quantity threshold. Treat the alert as a prompt to inspect demand, stock elsewhere, outstanding orders and lead time. It is not itself a supplier commitment.
An illustrative buying check:
| Item | Available | Already due | Planned target | Additional units to review |
|---|---|---|---|---|
| Bottles | 8 | 12 | 32 | 12 |
This is a simple stock-position example, not Square's forecast algorithm. Check whether the incoming 12 units will arrive in time and whether the additional quantity meets supplier packs and minimums. Use the reorder point calculator to examine the demand and lead-time assumptions.
Edit the order when the commitment changes
If the supplier changes a quantity, price or delivery date, review the change and edit the order where appropriate. Square explicitly documents an extra step after saving: send the updated order by email. An edit does not automatically generate a replacement vendor email.
Include a short revision note and keep the supplier's confirmation. This helps the receiver distinguish an accepted change from a request that is still being negotiated.
Receive what arrived
Open the PO and receive the actual quantities. Square supports receiving individual lines partially, so a short delivery does not require pretending the entire order arrived.
For the bottle example, if eight of 12 additional units arrive, record eight. Keep the remaining four visible until the supplier fulfills or cancels them. Review damage and other adjustments using Square's documented options, with a note that explains the event.
Only one workflow should increase the stock balance for those boxes. If another application also updates Square inventory, confirm which receipt is authoritative before staff enter the delivery twice.
Check costs separately from quantities
Square supports unit-cost recording, and its cost guide explains how receipt costs and stock adjustments affect reporting. Its PO guide also distinguishes added fees from the individual item unit cost. Do not assume that adding freight changes every per-unit field.
After a pilot receipt, inspect the item quantity, unit cost, additional fees and relevant report. Agree with the bookkeeper how the supplier invoice and accounting system will use that information. A correct inventory count alone does not prove the bill is correctly coded.
When the native workflow is enough
Native Square purchasing is a valid choice when the team can create orders, maintain revisions, receive correctly and give finance the needed evidence. A separate application should address a recurring operational problem.
If supplier emails repeatedly contain changes the receiver or bookkeeper cannot find, LineNow's Square purchasing workflow connects those reviewable changes to a living purchase order. Test one partial delivery, its item/location mapping and the accounting handoff before expanding.
For a LineNow pilot, start with the Square connection and mapping guide, then follow the partial-receiving steps. Check the mapped stock after one delivery before rolling out to more locations.
Sources checked
Reviewed September 4, 2026. This is a documentation-based native workflow guide.
- Square: create and manage purchase orders
- Square: create inventory alerts
- Square: set and update unit costs