What are two limitations the developer must be aware of?

A developer wants to set up a journey to send API calls to a third-party system using a custom action.

What are two limitations the developer must be aware of? (Choose two.)
A . Only POST and PUT call methods are supported.
B. Only simple collections can be passed in custom action parameters.
C. Advanced expression editor does not support arrays in action parameters.
D. Only the default ports are allowed when defining a custom action.

View Answer

Answer: B C

Explanation:

Custom actions are actions that allow the user to send API calls to a third-party system using a custom action template. Custom actions have some limitations that the developer must be aware of. One limitation is that only simple collections can be passed in custom action parameters. A simple collection is a collection that contains only scalar values, such as strings, numbers, or booleans. A complex collection is a collection that contains other collections or objects, such as arrays or maps. Complex collections are not supported in custom action parameters. Another limitation is that the advanced expression editor does not support arrays in action parameters. An array is a type of collection that contains multiple values of the same type, such as [1, 2, 3] or ["a", "b", "c"]. Arrays are not supported in the advanced expression editor, which is used to build expressions for custom action parameters. The developer can use lists instead of arrays, which are similar but have different syntax, such as list(1, 2, 3) or list("a", "b", "c"). The other options are not limitations of custom actions. Custom actions support both POST and PUT call methods, as well as GET and DELETE. Custom actions also allow any port to be defined when creating a custom action template.

References: https://experienceleague.adobe.com/docs/journey-optimizer/using/journeys/activities/custom-actions.html?lang=