Click to Pay Drop-In UI {#click-to-pay}
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26.05.01
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![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/new-15x75.svg/jcr:content/renditions/original) Added global support for clientVersion 1.0 .  
![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/update-15x75.svg/jcr:content/renditions/original) Updated Visa Click to Pay test cards. See [Test Payment Details](https://developer.cybersource.com/docs/cybs/en-us/click-to-pay/developer/all/rest/click-to-pay/ctp-testing-intro/ctp-reference-test-cards.md "").  
![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/new-15x75.svg/jcr:content/renditions/original) Added information about handling errors. See [Handle Errors](https://developer.cybersource.com/docs/cybs/en-us/click-to-pay/developer/all/rest/click-to-pay/ctp-testing-intro/ctp-handle-errors.md "").  
![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/new-15x75.svg/jcr:content/renditions/original) Added information about enabling Click to Pay Drop-In UI using the API. See [Enabling Click to Pay Drop-In UI Using the API](https://developer.cybersource.com/docs/cybs/en-us/click-to-pay/developer/all/rest/click-to-pay/ctp-uc-getting-started-integration-flow/ctp-enable-digital-pay-intro/boarding-click-to-pay-enable-intro.md "") and [Enable Click to Pay Customer Authentication Using the API](https://developer.cybersource.com/docs/cybs/en-us/click-to-pay/developer/all/rest/click-to-pay/ctp-configuration-intro/ctp-authentication/boarding-click-to-pay-auth-enable-intro.md "").  
![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/new-15x75.svg/jcr:content/renditions/original) Added information about adding Click to Pay to a merchant account. See [Add Click to Pay to a Merchant Account](https://developer.cybersource.com/docs/cybs/en-us/click-to-pay/developer/all/rest/click-to-pay/ctp-uc-getting-started-integration-flow/boarding-config-ctp-boarding.md "").  
![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/update-15x75.svg/jcr:content/renditions/original) Updated the Click to Pay workflow. See [Click to Pay Customer Authentication](https://developer.cybersource.com/docs/cybs/en-us/click-to-pay/developer/all/rest/click-to-pay/ctp-configuration-intro/ctp-authentication.md "").