As a tracker administrator
When I do change via API
I want to select if a notification is emitted or not

This is already an option available in the Mass Update feature. Change made by API can be related to Mass Update and, sometimes, are related to some cosmetic changes where notifications are not desirable.

For example, the Artifact Update payload has currently two attributes:

• values for the array of changes
• comment for the associated comment

A new attribute called notification settable to true or false could help controlling the emission of notifications. Such feature can be limited to a user having the tracker administrator permission as a notification is a feature expected by the receiver. Letting anybody doing changes without notifying the other receivers is not desirable.