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07-24-2025 03:26 AM - edited 07-24-2025 03:47 AM
When an agent adds a comment to a case, an email is triggered to the user. If the user replies to that email, the reply should update the existing case with the email content, comments, and any attachments.
I’ve implemented this using Flow Designer, and it works. However, I want to identify the case using the email’s reference ID (watermark) when the user replies.
How can I add a watermark or case ID to the outgoing email so that the reply can be mapped back to the correct case? Are there any other recommended ways to identify the case from the reply?
Does the watermark checking do by the system itself?
Solved! Go to Solution.
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07-24-2025 03:39 AM
Hi @Apaul
read this mate.
If my response proves useful, please indicate its helpfulness by selecting " Accept as Solution" and " Helpful." This action benefits both the community and me.
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Dr. Atul G. - Learn N Grow Together
ServiceNow Techno - Functional Trainer
LinkedIn: https://www.linkedin.com/in/dratulgrover
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07-24-2025 03:30 AM
Hi @Apaul
This is out-of-the-box (OOTB) functionality based on inbound email.
Could you please clarify the exact requirement?
By default, when a user replies to an email, the system checks the watermark and the incident/case number, then updates the corresponding record.
If my response proves useful, please indicate its helpfulness by selecting " Accept as Solution" and " Helpful." This action benefits both the community and me.
Regards
Dr. Atul G. - Learn N Grow Together
ServiceNow Techno - Functional Trainer
LinkedIn: https://www.linkedin.com/in/dratulgrover
YouTube: https://www.youtube.com/@LearnNGrowTogetherwithAtulG
Topmate: https://topmate.io/atul_grover_lng [ Connect for 1-1 Session]
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07-24-2025 03:32 AM
My question is, if we use inbound email, does the watermark checking and identifying case done by the system itself or do we need to do it manually here?
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07-24-2025 03:35 AM
Hi @Apaul
It is done by the system itself.
If my response proves useful, please indicate its helpfulness by selecting " Accept as Solution" and " Helpful." This action benefits both the community and me.
Regards
Dr. Atul G. - Learn N Grow Together
ServiceNow Techno - Functional Trainer
LinkedIn: https://www.linkedin.com/in/dratulgrover
YouTube: https://www.youtube.com/@LearnNGrowTogetherwithAtulG
Topmate: https://topmate.io/atul_grover_lng [ Connect for 1-1 Session]
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07-24-2025 03:33 AM
Whenever an email goes from record system adds a watermark and this watermark helps system to identify the target record when Inbound email action or Inbound flow works on that table of type Reply.
what's not working in your case?
If my response helped please mark it correct and close the thread so that it benefits future readers.
Ankur
✨ Certified Technical Architect || ✨ 9x ServiceNow MVP || ✨ ServiceNow Community Leader