Merge Salesforce Cases: Is the New Feature a Game-Changer?

By Howard Yermish

Have your users ever said in frustration, “I need the ability to merge two cases and their related records?” After all, duplicate cases can be a major headache.

Eight years ago, this very frustration was expressed on the IdeaExchange: “I need the ability to merge two cases with all their associated emails, history, comments, etc.” Those who have been following and commenting along since, cheered when it was announced that Salesforce Merge Case functionality will be in beta as part of the Summer ‘19 release!

After this long wait, I was keen to jump into a pre-release org to better understand how Salesforce is merging cases. And I wasn’t alone – the new feature has raised many questions.

In this post, I will go into the details on how the new Case Merge functionality will work by answering key questions, such as “What Happens When Cases are Merged?”, and “How Do You Detect Duplicate Cases?”. First off, I will share some background on why merging cases became such a popular request, due to the pain I have seen duplicate cases cause within service operations.

Why Case Merging is a Must?

Channel Thrashing

Just imagine: A single customer emails, texts, calls, and posts on your community for a single problem.

This is known as “channel thrashing,” which creates multiple cases for a single problem, is a nightmare for support teams. Often, a single agent works multiple cases for the same problem, or multiple agents get assigned to different channels to resolve the same issue.

Reply All = Redundant Cases 

A customer copies several colleagues on a case-creating email. One colleague hits Reply All, creating a new case, and the subsequent replies exacerbate the duplicate case problem. The creation of multiple cases is a huge pain point for support teams, who struggle to organize redundant cases.

In both of these scenarios, the result is the same: inefficient processes, frustrated support agents and confused customers. Also, of course, work on redundant cases skews metrics, creating inaccurate KPIs.

Merging cases would reduce the clutter of duplicate cases, streamlining workflow so each case is handled by a single agent, and enabling users to filter unnecessary cases out of metrics or reports, improving and clarifying KPIs like Average Handle Time and Resolution Time.

Salesforce Merge Cases: Answering Key Questions

If you’ve merged a Lead or Account before, the Merge Cases functionality will work in a similar way – with some additional considerations to bear in mind. These considerations are what I hope to uncover by answering key questions on the Case Merge feature – a list of questions that are the result of both my own thinking and questions Salesforce admins have approached me asking.

Q1: What are the key capabilities of the Merge Cases feature in Summer ‘19?

  • Find duplicate cases by text (fields) by case number or subject from a list view or case record page
  • Merge up to three cases in a single operation
  • Select fields from duplicate cases to update the master case values
  • Move most related objects from duplicate cases to master case
  • Support for Lightning Experience only

Caption: As a first step, you need to enable the feature in the support settings.

Caption: Once cases are merged, you will see a case comment that shows the merged case numbers.

Q2: What Happens When Cases are Merged? 

  • Selected fields are merged into the master case.
  • Related records from the duplicate cases are merged into the master case.
  • Feeds from the duplicate cases are merged into the master case. Child cases of the duplicates are re-parented to the master case.
  • The master case remains.
  • Duplicate cases are deleted to the Recycle Bin.  Cases can be restored; however, the restoration will not move any of the above back to the original.

Caption: Once cases are merged, you will see a case comment that shows the merged case numbers.

Q3: How Do You Detect Duplicate Cases? 

Searching for duplicates is manual. Salesforce is not providing matching rules functionality on the case object.

  • From a list view, users can select up to three cases to begin a merge.
  • From a single case record, users can click the Merge Cases button and then search for the case number or subject.

There is no indication on the existing case that the customer may have other duplicate cases. A good workaround in the Lightning App builder may be to add the “Related List – Single” component to show a related list of cases for the related account or contact.

Q4: What if Someone Sends an Email Reply to a Merged Case? 

An email reply to a deleted case (or a case still in the Recycle Bin) will create a new case. To avoid this problem, users will have to urge customers to reply only to the latest comment, which was sent from the surviving master case.

Q5: What Permissions do you need to Merge Cases?  

The Merge Cases button requires “delete permission” on the case object—this is not a best practice in Salesforce. While we don’t recommend this, smaller support teams with a high level of trust may feel comfortable extending delete permissions to people working cases. Larger teams may want to give a support team manager delete permission to merge duplicates.


The new Merge Case feature is clearly a welcome addition to the Salesforce platform. I hope this piece has been informative for you, by directly answering the questions many Admins, and others, have approached us with. Although Salesforce is taking a step in the right direction (and retiring a LOT of IdeaExchange points), there are considerations that need paying close attention to, to ensure that users can merge cases efficiently, and without unintended consequences.

About Case Merge Premium

Case Merge Premium offers Salesforce Admins powerful, flexible configuration settings, reducing the clutter of duplicate cases and streamlining workflow so each case is handled by a single agent. Case Merge Premium also enables users to filter unnecessary cases out of metrics or reports, improving and clarifying KPIs like Average Handle Time and Resolution Time.  Check out Case Merge Premium on the AppExchange to take the next steps.

The Author

Howard Yermish

Director of Product at Vicasso & member of the Lightning Champions program. Seasoned presenter/speaker, avid photographer, music composer and all around groovy human.


    May 06, 2020 1:09 am
    Does case merge also send an email notification to the case contact after merging cases?
    Howard Yermish
    May 06, 2020 1:42 pm
    Unfortunately no, and no notification to the owner of the case that was merged either. That said, your customers don't really care that you merged cases, so I would recommend against sending an email to the case contact. With Case Merge Premium, the follow-up messages will go to the master case regardless of which case the case contact responds to. With Salesforce's Merge Cases, it should also reparent the replies to the right case now (Spring '20).
    June 29, 2020 3:48 pm
    Do we have any identifier (like 'isMerged') on Master case that other cases have been merged to this case ? if not, Can we create one using some logic?
    Christine Marshall
    March 12, 2021 1:28 pm
    Check out this info from Salesforce:
    May 18, 2021 12:58 pm
    How can I unmerge wrongly merged cases ?
    May 18, 2021 5:57 pm
    Can we update few more fields (like Closed Reason, Closure Notes) apart from Status while merging the case ?

Leave a Reply