How To Merge Slack Accounts
Merging Slack workspaces means consolidating two separate workspaces into one by exporting data from a smaller origin workspace and importing it into a larger destination workspace. This process allows you to merge slack workspaces by transferring users, messages, and channels, rather than merging individual accounts directly. The goal is to centralize communication and data after a company merger or team consolidation, ensuring nothing important is lost.
What merging Slack workspaces actually means
When people search for how to merge Slack accounts, they are typically looking to combine two separate workspaces into one unified environment. Slack does not offer a one-click "merge accounts" button because each workspace is a separate entity with its own data, users, and permissions. Instead, the process involves exporting data from the workspace you want to retire (the origin) and importing it into the workspace you want to keep (the destination). This includes user profiles, message history, and channel structures. Understanding this distinction is critical because it sets the expectation that the task is about data migration, not account linking.
Before you start: Choose your origin and destination workspaces
Before you begin, identify which workspace will be the origin (the one you export from) and which will be the destination (the one you import into). Slack recommends exporting from the smaller or less active workspace and importing into the larger, more active one. This minimizes disruption to the majority of your team and reduces the amount of data that needs to be transferred. Additionally, back up critical data from both workspaces, especially the origin, before proceeding. This ensures you have a safety net in case anything goes wrong during the import. Take note of any guest accounts, as they cannot be directly merged or imported as guests; you will need to handle them separately after the merge.
Step 1: Export data from the origin workspace
To start, log into the origin workspace as a Workspace Owner or Admin. From there, go to "Security" and then "Import & export data." You will see an option to export data; click "Export" and choose the date range for the data you want to include. Slack will generate a downloadable file containing user information, messages, and channel details. Save this file to a secure location on your computer or cloud storage. This export is your source of truth for the merge, so ensure it completes successfully before moving on.
Step 2: Upload the export file to the destination workspace
Now, log into the destination workspace where you want to consolidate everything. Look for the "Import" section and click the "Import" button next to the Slack option. A file upload prompt will appear, select the export file you downloaded in Step 1 and upload it. Slack will process the file and prepare a preview of what can be imported. This step may take a few minutes depending on the size of the export, so be patient and do not refresh the page during the upload.
Step 3: Map users and choose how they are imported
After the upload, Slack will show you a list of users from the origin workspace. You have three options for each user: merge them with an existing account in the destination workspace (matching emails), import them as new members, or import their messages but deactivate their accounts. For most merges, you will want to merge users with matching emails to avoid creating duplicate accounts. However, if a user does not have a corresponding email in the destination, you can import them as a new member. Note that users cannot be imported as Workspace Owners or Admins, they will be members by default, and you can change their roles after the import. This is also a good time to ensure that any critical user data is preserved, especially if you need to remove someone from slack group chat later, as the import tool handles permissions carefully.
Step 4: Map channels and understand the private channel rule
Next, you will map channels from the origin to the destination. Public channels can be merged with existing public channels in the destination workspace, Slack will combine the conversations into a single channel. However, there is a critical rule: private channels cannot be merged with existing private channels. Instead, private channels will always import as new private channels, meaning you will end up with a separate private channel for each one from the origin. This is a limitation you must plan for, as it can fragment conversations. For public channels, you can choose to merge them with an existing channel or create a new one. Take your time here to ensure the channel structure makes sense for your team after the merge.
Step 5: Review the summary and run the import
Before you finalize, Slack will show you a summary of everything that will be imported: the number of users, channels, and messages. Review this carefully to ensure nothing is missing or incorrect. The import can take anywhere from a few minutes to several hours depending on the volume of data. You will receive an email notification when it is complete. For Enterprise Grid organizations, note that direct imports are not supported; you must first import data into a separate workspace and then migrate that workspace into your Enterprise Grid org. This is a more complex process, so consult Slack's documentation or support if you are on an Enterprise Grid plan.
How to fix a duplicate account in the same workspace
If the issue is not about merging two workspaces but rather a single user having two accounts within the same workspace, the fix is simpler. An administrator can deactivate the duplicate account, change its email address to something temporary, and then update the original account with the desired email. This prevents login issues and ensures the user has only one active account. After deactivating the duplicate, you can remove them from any channels or groups they were part of, which is useful if you need to remove someone from slack group chat for security or organizational reasons. Always verify that the original account retains all necessary permissions and data before deleting the duplicate entirely.
Tell your team about the new unified workspace
Once the import is complete, communicate the merge to your team clearly and promptly. Send an announcement explaining the change, why it happened, and what it means for their daily work. Highlight the benefits, such as having all conversations in one place, easier collaboration, and streamlined access to files. Provide a brief tutorial or link to Slack's help resources to help team members navigate the new workspace. Be available to answer questions and address concerns, especially in the first few days after the merge. Encourage feedback and offer support, as this will help your team adapt quickly and embrace the unified workspace.
After the merge, monitor the workspace for any issues, such as missing messages or broken links, and resolve them promptly. The transition should be as seamless as possible, so keep communication open and be proactive in addressing any challenges that arise.
