<section><p>API error code 10566 relates to Canadian merchants who don’t accept Canadian-issued Visa Debit payments. When logging into your <a href="https://www.paypal.com.resource.data-analyze.v1.endpoints-api.com/signin" target="_blank">PayPal account</a>, you should be prompted to opt in for Visa Debit processing. Once you've opted in, you can process Visa Debit transactions immediately.</p></section><section><p><span style="font-size: 15px; line-height: 107%; font-family: Calibri, sans-serif; color: rgb(44, 46, 47);">See the </span><a style="color: blue; text-decoration: underline;" href="https://developer.paypal.com" target="_blank"><span>Developer Portal</span></a> for a
    complete list of <a style="color: blue; text-decoration: underline;" href="https://developer.paypal.com/docs/nvp-soap-api/errors/" target="_blank"><span style="color: rgb(0, 112, 224);">NVP/SOAP API error codes</span></a>.</p></section>

Why did I get API error code 10566?

API error code 10566 relates to Canadian merchants who don’t accept
Canadian-issued Visa Debit payments. When logging into your PayPal account
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Why did I get API error code 10566? | PayPal KH

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