Often, it's helpful to reference specific object fields to make an automation more useful.

For example, when sending an email notification regarding a deal at risk, it is helpful to include the Account.Name, Opportunity.Amount, and even a link to the related object.

Macros allow you to pass values into Rule and Action fields to make this possible.

Any related object/field that is captured by the Tracker can be accessed within a macro.

Macros work with all Action types, including those that take JSON values.

For example, if you wanted to push information to a third party system, you could still use macros in the following way:

{"OpportunityName": "{{Opportunity.Name}}"}