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This integration uses SumUp POS Custom Loyalty. It is not a generic connection to every SumUp card reader or payment product. Access requires the POS Connect entitlement and release availability for the business.

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Connect the store

  1. Open Integrations → SumUp POS (Custom Loyalty) → Connect.
  2. Enter the store subdomain, optional display name and intended Perkstar loyalty programme, then choose Create gateway URL.
  3. In SumUp POS Backoffice, open Apps → Loyalty → Custom Loyalty Settings. Paste the exact merchant gateway URL, name the connection Perkstar, enable it and save.
  4. Copy the Verification Token displayed by SumUp POS back into the Perkstar workspace, then choose Activate SumUp POS. The gateway stays locked until activation. Treat the token as a secret.

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Verify checkout

Use a controlled customer and scan their Wallet QR code. Check that the intended programme and available rewards appear, then verify one completed sale against its Perkstar transaction. Where product rewards are used, configure eligible product SKUs and maximum product value before redemption. Do not assume a displayed reward was settled until the completed-sale record confirms it.

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Recover safely

Retain the original sale reference when investigating retries. A repeated callback must not grant the same reward twice. Check the store subdomain, programme mapping and verification token before replacing a connection. Changing the programme can affect future checkout eligibility and should be deliberate. Disconnect through Manage, and remove or disable the corresponding Custom Loyalty configuration in SumUp POS when retiring it. See the POS safety walkthrough for identity and duplicate handling.