This Action allows you to execute a dynamic FetchXML with date agregation and return the result date. Very usefull for example to retrieve the max/min date from child records from a customer.
First, you need to select the action:
And finnaly you can use the response on the workflow like this:
An example of the fetchXML to retrieve the max date of the related activities of the account:
Note that the {PARENT_GUID} text will be replaced dynamically with the entity context Guid.