Issue Summary

After the release of the new batching feature in July 2024 as part of JRACLOUD-72688, notifications sent to watchers regarding assignees are being sent as individual urgent emails instead of being batched together.

Community post - https://community.atlassian.com/t5/Jira-articles/Customise-your-email-notification-frequency-in-Jira-for-better/ba-p/2768283#M15228 

Steps to Reproduce

1. Disable the email batching option.
2. Change an assignee on a ticket with watchers.
3. Observe the urgent notifications received by watchers.

Expected Results

Notifications should be grouped together every 3 minutes, reducing email volume for users.

Actual Results

Users receive multiple urgent notifications, leading to confusion and an overwhelming inbox. 

Workaround

Enabling the default 3-minute batching option resolves the issue temporarily. Steps to the path- 

• Go to the Profile Button -> Notifications
• select the Group notification emails together toggle
• We'll group together notifications for the same issues into one email. How often do you want to receive these? Choose 3 minutes