Hi Everyone.
I've got a weird issue with paypal express checkout. It's been working fine for ages, years in fact & we haven't made any code changes. As of the last 2 weeks or so, hardly any paypal express checkout payments go through. For every say 10 attempts, 1 will go through. The rest are failing with the following returned in logs
[BUILD] => 57278533
[L_ERRORCODE0] => 10486
[L_SHORTMESSAGE0] => This transaction couldn't be completed.
[L_LONGMESSAGE0] => This transaction couldn't be completed. Please redirect your customer to PayPal.
[L_SEVERITYCODE0] => Error
[CURL_ERRORS] =>
I know a 10486 used to mean that there was an issue with the user's bank, but this seems to be happening all the time now. As an example, we used to have a rough 50/50 ratio of square payments to paypal payments, now perhaps 1 in 10 payments are paypal, with the rest of the paypal attempts failing. We are having a lot of abandoned carts, so I'm thinking this is a bit more serious than all of those customers having issues with their paypal accounts or banks. Anyone else seen this?
I'm using Zen Cart 1.5.6c on php 7.3.33
Like I said, we've made no updates or code changes, and it was all working OK until around 14 days ago. I've left a screenshot of the logs folder to highlight how common it's getting.
Site is https://www.koolbadges.co.uk
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