Why are my Shopify Payments being rejected after initial success?

Topic summary

Issue: After switching from an obsolete gateway to Shopify Payments, the store processed one successful test order, but subsequent payments are now being rejected. The merchant confirmed all required setup information was completed and tested with two different, valid credit cards. Store operates in Denmark.

Latest updates: A Shopify staff member requested the exact error message to diagnose the issue and provided a direct support path: open chat, type “Shopify Payments,” click “I still need help,” and follow prompts to join the queue for authenticated account review. The merchant attached a screenshot of the checkout/payment error (in Danish). The specific error text is not transcribed in the thread.

Status: Unresolved. The cause of the payment rejections remains unknown pending review of the exact error and/or account by Shopify Support.

Next steps:

  • Share the precise error message text from the screenshot.
  • Contact Shopify Support via chat for authenticated investigation of the Shopify Payments account and risk/settings.
  • Confirm any recent settings, verification, or regional restrictions relevant to Denmark.
Summarized with AI on January 13. AI used: gpt-5.

Hi

I just changed payment gateway from one which were obsolete to shopify payments.

I succeded in doing one test order yesterday to verify it was working and it did but today it is not working and payments are being rejected.

I set up the shopify payments with required informations and did a test which were successful

What am i missing here? I tested with 2 different creditcards knowing they are but open for business and I cant find anything in the setup which are missing?

Please help since I/we are loosing business

Hi @Carbenet , thanks for reaching out to the Shopify Community.

Can you show me the kind of error message you’re receiving? Once I see how it’s not working I can help you better. I know this is something you need immediate assistance with so please reach out to our support team if you don’t want to wait for my forum reply here. Write “Shopify Payments” in the chat > Click “I still need help” > Then follow the prompts to be added to the queue. They’ll be able to authenticate you and then look into your account to see what can be causing this issue. Otherwise, respond here and I’ll reply as soon as I can.

I have attached a screen shot of what the error looks like when trying to make a payemt - it is in danish since we only operate in Denmark