Pass Custom Data Values into Annotations
(Pro Plans Only) If you use share/embed links on different sites/channels, you might want to pass in different data depending on source or target data (e.g. customized email addresses, referral codes, target URLs, etc).
Custom Data Passthrough enables you to create annotations with placeholder values and set their values via share link URL parameters — similar to how template variables or merge tags work in email software.
For more details, visit the documentation.