A “Shopify purchase order app” in search results usually means supplier or inventory purchasing: POs you create to restock. A different kind of app turns a customer’s purchase order, sent as a PDF, an email, or Excel, into a Shopify draft sales order. If buyers email you POs, you want that second kind, for example POinbox, not a Stocky-style inventory tool. The two jobs share the words, which is why the inventory apps show up first.
The inventory / supplier purchase order app
These apps help you buy stock. You pick products to reorder, send a PO to a vendor, and receive inventory. Titles talk about purchasing, suppliers, and replenishment. They are the right install when the vendor on the document is someone you pay. They are the wrong install when the vendor on the document is you.
Shopify’s own purchasing docs cover the concept. The written split is customer vs inventory purchase orders.
The customer-PO / PDF-to-order app
These apps read a buyer’s file and open a draft order for review. Formats, matching, and flags matter more than the words “purchase order” in the title. POinbox is the one for a buyer’s file. LevelOps is the other one. Read their listing for what they claim.
POinbox starts free (5 successful drafts); paid plans from $29/mo. LevelOps has a Built for Shopify badge and paid plans after a small free allowance. LevelOps alternatives and POinbox vs LevelOps.
A checklist for customer-PO apps
- Formats you actually receive: PDF, email, Excel, CSV, Word.
- B2B company and company location, not only a customer email.
- Catalog pricing, plus an explicit flag when the PO price differs.
- Uncertain lines held for review before a draft exists.
- On someone else’s listing: review count, Built for Shopify, and a price you can see.
Against that list, POinbox covers formats, companies and locations, catalog pricing, price-difference flags, and uncertain-line review. It does not have a Built for Shopify badge. It starts free (5 successful drafts).
How to read the App Store results
Look at the subtitle, not the category chip. “Draft order,” “PDF,” and “email” point at customer POs. “Purchasing,” “supplier,” and “receive inventory” point at stock. If you are unsure after the subtitle, you are unsure enough to read the disambiguation page before you install.
Next steps
- Wrong intent: customer vs inventory.
- Choosing a process: ways to process customer POs.
- The product: POinbox, then the App Store install.
Titles that lie, and titles that don’t
Read the first two lines of their listing, then the screenshots. “Purchase order,” “supplier,” “receive,” and “reorder point” are inventory language. “Draft order,” “PDF,” “email,” and “customer PO” are sales-document language. An app can use both phrases and still be one job. If the screenshots are a receiving screen, you are in the wrong aisle even if the title says purchase order.
Inventory apps have ranked for those words for years, so a search for a purchase-order app puts restock tools on top even when almost nobody is looking for them. A wholesale buyer’s PDF is a different job. This page is here so that PDF does not get answered with a replenishment app.
A twenty-minute test before you install a second app
Pick one customer PO you entered by hand last week. You already know the right company, the right location, the right variants, and the right prices. Run it through the customer-PO app. Count what you had to touch. If you touched every line, you bought a viewer. If you touched the three lines that were actually ambiguous, you bought a review step.
Do not run a perfect sample the vendor sent you. Their sample matches their demo catalog. Your PO matches your messy buyer. POinbox Free includes 5 successful drafts, so the test is cheap If the company match is wrong, stop. The product page is POinbox.
When to close the tab
Close a customer-PO listing if it promises supplier receiving, reorder points, or inbound shipments. Close an inventory listing if you came in with a buyer’s PDF. A photo of a paper PO and a forwarding address for the inbox are both part of POinbox. The disambiguation page is customer vs inventory purchase orders. The process choice is ways to process customer POs.