50% Failed transactions

primecurls — Mon, 22 Sep 2025 05:23:36 GMT

Hello i having problem with this payment processor. Looks like 50% of my customers ( selling in UK ) 50% are successful payments and 50% is failed. the issue is verification problem and email valid. what can be an issue?

Re: 50% Failed transactions

Emma_ — Mon, 14 Mar 2022 16:45:13 GMT

Hi @primercurls, sorry to hear you are experiencing an issue with your online payments.

If you are using a custom API to accept your online payments with Square, you may need to update your API with the latest SCA requirement. If it is not updated, you may see an increase in declined payments due to verification. To learn more, please visit our Developer website here and ask any questions you may have in the Developer Forum.

If you are accepting your payments through Square Online website or Online Checkout links and see an increase in declined payments, it is best to contact our Support team to check your declined payments. SCA-related verification is already implemented in our system to comply with the latest regulation.

thread 50% Failed transactions in Payments Troubleshooting

50% Failed transactions

Re: 50% Failed transactions