I have a requirement to send a notification to the knowledge author once the knowledge article is RE

[Legalr]

I have a requirement to send a notification to the knowledge author once the knowledge article is REJECTED on retirement.

[Mark Manders]

Just create a notification on the knowledge article table. Condition = 'workflow changes to retired' and you send the email to the author. Straightforward, just like with every notification.

Maybe also follow this thread, although I have the feeling you know about it: https://www.servicenow.com/community/developer-forum/knowledge-article-rejected-email-notification-f...

[Ash33]

Please check my thread. I had the same requirement and I solved it.

https://www.servicenow.com/community/developer-forum/knowledge-article-rejected-email-notification-f...

Please accept this as a solution if it solves your requirement.

Thanks,
Ash

[Bhuvan]

@Legalr 

Workflow - 'Knowledge - Approval Retire'. When Approval is rejected, customize the workflow to send an email notification along with out of box WF activity 'Move Article to Initial State'

https://www.servicenow.com/docs/bundle/xanadu-servicenow-platform/page/product/knowledge-management/...

Thanks,

Bhuvan