I have this error message when I try to debug a flow that get records Id and send a custom notification : Error Occurred: Custom Notification Action is not allowed
I googled this error and found that : "Require User Permission for the Send Custom Notification Action" ==> https://help.salesforce.com/articleView?id=release-notes.rn_mobile_notifications_release_update.htm&type=5&release=228 But I didn't get any details on how to resolve this.
I used the same flow to send custom notification on my personal Org and it worked perfectly.
Any of you have a solution to this?
Thank you in advance.