Connecting SumUp POS

SumUp is fully supported in Stash, including SumUp Orders. Connection takes 2 minutes via OAuth.

Who can do this

Only Admins can connect SumUp. You'll sign in to SumUp as the account owner during the flow.

Before you start

You need at least one Stash shop set up. See How to add your first location.
You need your SumUp account owner login.
Allow popups for app.getstash.io in your browser.

How to connect SumUp

From the sidebar, open Integrations.
Find the Stash shop you want to connect SumUp to.
Click Connect POS.
Choose SumUp from the provider list.
Sign in to SumUp with your owner account.
Authorize Stash to access your products, locations, and sales.
You'll be redirected back to Stash. The connection appears in seconds.

After connecting — finish the setup

Same flow as any POS connection:

Locations imported automatically
Map locations to your Stash shops. See Mapping POS locations to Stash shops.
Sync products to pull in your SumUp catalog
Link Blueprints to each SumUp product that's a recipe, bundle, or kit. See Linking a Blueprint to a POS product.

How sales reach Stash

Stash pulls in SumUp sales every 15 minutes. Only orders that are closed in SumUp are processed. Historical SumUp orders placed before you connected are not imported. For the full breakdown, see How POS sales deduct stock automatically.

Good to know

SumUp Orders

SumUp's Orders functionality (the more advanced order-management add-on) is also supported in Stash. Orders flow through with the same automation as regular SumUp transactions.

Multi-location SumUp

If your SumUp account covers multiple physical sites, all locations import. Map each one to the right Stash shop.

Refunds

SumUp refunds and voids do not automatically reverse the stock deduction in Stash. If you refund a sale and need the stock to come back, do a manual stock adjustment with a note referencing the refunded order. See Adjusting stock quantity manually. Automatic refund reversal is on our roadmap.

Troubleshooting

"My SumUp account doesn't show all my locations"

Ensure you signed in with the SumUp owner account, not a sub-user. Sub-users may not have visibility on all locations.

"Sales aren't appearing in Stash"

Sales sync every 15 minutes — give it a sync cycle. If still missing after that, check the Setup card on the Integrations page. The most common issue is that locations aren't mapped — sales come in but Stash doesn't know which Stash shop to post them to.