Once you create an Effector, you need to run it for any changes to take effect. To do that, locate the Effector at the top of the structure and click the Action button (the three dots to the right of its row). Select Run.
In order to run an Effector, user must have Bulk Change global permission in Jira.
By default, Effectors initially do a Preview run, which allows you to view and approve every change that will be made by the Effector, without making any changes to Jira data. If you prefer to simply apply changes without reviewing them, switch the Preview effects before applying toggle off. When you're ready to run the Effector (in Preview mode or not), click Run to begin.
If you selected Preview effects before applying, once the preview finishes you will see a list of changes that will be made by the Effector. You can select specific changes you want made, or click Select All to apply all changes.
Once you click Apply selected or Apply, the Effector will begin processing your changes and updating values in Jira.
If you click Dismiss, no changes will be made to Jira and the preview will be discarded. To apply changes later, you will need to re-run the Effector.
Once complete, you will see a confirmation letting you know that all changes were made. If the Effector is unable to make some or all changes, that information will be displayed here as well.