Hi There!
I've just tried call a workflow with a JSON object with sucess. See below a JSON object format sample that I used.
![paulogalan_2-1629290351377.png paulogalan_2-1629290351377.png](https://experienceleaguecommunities.adobe.com/t5/image/serverpage/image-id/33660i096D5A228D404626/image-size/medium/is-moderation-mode/true?v=v2&px=400)
Now I need send more than one objects in the same time using a JSON array format. But there is an error like this: "'0' parameter isn't defined in signal activity."
Question. Does the TSA only accept JSON object format? See below a JSON array format sample that I'm trying use.
![paulogalan_1-1629290266501.png paulogalan_1-1629290266501.png](https://experienceleaguecommunities.adobe.com/t5/image/serverpage/image-id/33659i12F81AB200577B25/image-size/medium/is-moderation-mode/true?v=v2&px=400)
In Adobe's documentation, so far I have found no reference for JSON type and format on "Triggering a signal activity ". Or some information on limitations of this service.
https://experienceleague.adobe.com/docs/campaign-standard/using/working-with-apis/managing-workflows...
In other words, I'd like use the JSON array instead JSON object.
![paulogalan_0-1629300675192.png paulogalan_0-1629300675192.png](https://experienceleaguecommunities.adobe.com/t5/image/serverpage/image-id/33662i34B4E45A85EDB18B/image-size/large/is-moderation-mode/true?v=v2&px=999)
Regards
Paulo