# Troubleshooting business hubs

The following sections contain instructions to troubleshoot issues in case tasks fail or if you must perform changes manually in the external app that you connect to Cerby:

* [Add users manually](#add-users-manually)
* [Remove users manually](#remove-users-manually)
* [Update user roles manually](#update-user-roles-manually)

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## Add users manually

If the task to add a user to your external app fails, you must send the invites manually in the seat-based or paid social app. To do so, you must complete the following steps:

1. Log in to your external app with your admin account.
2. Access your user permissions or collaboration space settings.
3. Send an invitation to the corresponding user.

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## Remove users manually

If the task to remove an app member fails or the app member is deprovisioned from your Cerby workspace via your identity provider, you must remove the corresponding app member manually in the seat-based or paid social app. To do so, you must complete the following steps:

1. Log in to your app with your admin account.
2. Access your user management or collaboration space settings.
3. Remove the corresponding user.
4. Complete the steps from the article [Sync your business hub with your external app](https://help.cerby.com/setup-and-admin/identity-lifecycle-management-idlcm/business-hubs/managing-users/sync-your-business-hub-with-your-external-app) to identify and import the latest user changes to Cerby.

***

## Update user roles manually

If the task to update the role of a user fails, you must change their user roles manually in the seat-based or paid social app. To do so, you must complete the following steps:

1. Log in to your external app with your admin account.
2. Access your user management or collaboration space settings.
3. Change the corresponding user role.
4. Complete the steps from the article [Sync your business hub with your external app](https://help.cerby.com/setup-and-admin/identity-lifecycle-management-idlcm/business-hubs/managing-users/sync-your-business-hub-with-your-external-app) to identify and import the latest role changes to Cerby.


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