Hey.
There are multiple ways by which 1 can achieve this :
- The main pipeline which you want to trigger after all other trigger is completed , you can add untill and web activity and monitor the trigger status via REST API
https://learn.microsoft.com/en-us/rest/api/datafactory/trigger-runs
2) At the end of each pipeline (the initial triggers)you can add a logging part in a database and in the initial of the final pipeline you can add an untill activity and a lookup activity to check the completion status of each pipeline