Understand the general concepts and best practices of automation in Atlassian cloud products.
Add and remove labels
When setting up the Labels field, select more (•••) > Add/remove values to add or remove specific labels to and from the existing set of labels. Using this option will override the default behavior of replacing all existing labels.
Add values to multi-select fields
By default, when setting up a multi-select field, you will set the values to the field, rather than add values to any existing values. This means the result of the action will override any other values that already existed on the field. In the below example, the issue will only have one value (Component 1) in its Components field.
To add new values to the existing values on a field, select the Copy from issue options along with any new values to add. In the below example, the issue’s Components field will retain any values that were already there, in addition to Component 2.
Edit issues with JSON
You also have the option of editing fields using JSON input, allowing for more advanced field editing. Read more about editing fields with JSON