Iframe is not loading when trying to use payment capture package in salesforce
customer Installed Payment Capture package and the HPM page setup is correct, But when the user clicked on Payment capture link iframe is not loaded and received below error.
Solution: When verified customer Zuoa Quotes version is higher than 9, where users having user-based licensing. If the Site's guest user is not granted a license to Zuora Quotes package this error will occur.
To add this license to the site user, go to the Site -> click "Public Access Settings" -> "Assigned Users" -> click into the user -> click "Assign Licenses" under the "Managed Packages" section, and add the Zuora Quotes app.
Once the steps are followed the issue got resolved.
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