Thank you for your follow-up question, flomomo!
Our documentation details that a number of callback features are available upon request, including:
Callbacks with basic authentication by provisioning the callback URL with a username and password.
Callbacks with OAuth 2.0 by provisioning the callback URL with a username, a password, and the URL to fetch an OAuth access token.
In order to enable these features, you must reach out to your account manager for support. They will be able to help you gain access to this functionality.
If you have any other questions, or would like to provide additional context for your question, please feel free to respond to this post.
Thank you!
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