Custom data returned as a JSON encoded string

Released October 17, 2022

We updated webhooks so that custom_data included in payloads is now formatted as a JSON encoded string rather than JSON object.

Previously, as a JSON object:

Now, as a JSON encoded string:

This update makes it easier to work with custom_data and means that signature verification works more reliably.

Existing implementations are unaffected.

If you've already implemented custom_data, we haven't made this change on your system. custom_data is returned as before.

We'll reach out to customers whose integrations are impacted by this change to advise about migration.