Troubleshooting
Learn more on how you can troubleshoot if you encountered any issues.
Customers can't proceed with their card payments because they can't input their OTPWhat is an ACS issue?
Why can't I process payments after being activated?
Why do payments fail or get declined?Learn about the common reasons for payments failing or getting declined.
For GCash payments: Why was I still charged or debited for a failed transaction?
Error on PrestaShop: Your payment cannot be processed for technical reasons.Learn how to resolve issues in your PrestaShop integration.
Why is my payment getting flagged as risky by Shopify?Learn more about why Shopify flags payments as risky and what you should do about it.
Error on Shopify: Your payment cannot be processed for technical reasons.Learn how to resolve issues in your Shopify integration.
Why can't I refund Shopify transactions from the PayMongo Dashboard?
3D Secure card protocolsWhy some credit and debit card transactions are declined
What is 3D Secure or 3DS 2.0?
My customer's transactions are failing after installing Express Cards via Paymongo on Shopify, what do I do?Learn how to troubleshoot your installed Shopify plugin [Express Cards via PayMongo]