--- title: Manage Companies Users Can Access Files, Folders, & SharePoint Sites From description: Use this operation to add or remove domains from the list of allowed outbound B2B organizations for file, folder, and SharePoint sharing. --- [Skip to content](https://knowledge.sittadel.com/manage-companies-users-can-access-files-folders-sharepoint-sites-from#main-content) [![Sittadel-Logo-Icon-Slim-Large-Square-Green-Transparent copy](https://knowledge.sittadel.com/hs-fs/hubfs/Sittadel-Logo-Icon-Slim-Large-Square-Green-Transparent%20copy.png?width=55&height=55&name=Sittadel-Logo-Icon-Slim-Large-Square-Green-Transparent%20copy.png)](https://sittadel.com/) - [About Sittadel](https://sittadel.com/about/) - [Capabilities](https://sittadel.com/capabilities/microsoft-office365-azure-security/) Show submenu for Capabilities - [Microsoft Security Architecture](https://sittadel.com/capabilities/microsoft-office365-azure-security/) - [Detection & Response](https://sittadel.com/capabilities/managed-detection-and-response/) - [Employee Training](https://sittadel.com/capabilities/security-awareness-training/) - [Security Risk Advisors](https://sittadel.com/capabilities/virtual-information-security-officer/) - [Resources](https://sittadel.com/resources/) - [Knowledge Base](https://knowledge.sittadel.com/) Open main navigation Close main navigation - [About Sittadel](https://sittadel.com/about/) - [Capabilities](https://sittadel.com/capabilities/microsoft-office365-azure-security/) Show submenu for Capabilities - [Microsoft Security Architecture](https://sittadel.com/capabilities/microsoft-office365-azure-security/) - [Detection & Response](https://sittadel.com/capabilities/managed-detection-and-response/) - [Employee Training](https://sittadel.com/capabilities/security-awareness-training/) - [Security Risk Advisors](https://sittadel.com/capabilities/virtual-information-security-officer/) - [Resources](https://sittadel.com/resources/) - [Knowledge Base](https://knowledge.sittadel.com/) - [Get Sittadel](https://sittadel.com/start/) [Get Sittadel](https://sittadel.com/start/) Find answers to your security questions. - There are no suggestions because the search field is empty. 1. 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[Collaboration Security](https://knowledge.sittadel.com/techops?hsLang=en#collaboration-security) # Manage Companies Users Can Access Files, Folders, & SharePoint Sites From ## Use this operation to add or remove domains from the list of allowed outbound B2B organizations for file, folder, and SharePoint sharing. ### **![](https://knowledge.sittadel.com/hs-fs/hubfs/image-png-Jan-19-2024-04-04-16-2156-PM.png?width=125&height=133&name=image-png-Jan-19-2024-04-04-16-2156-PM.png)Role Requirements** Procedure Scope: **Administrators** Required Group Membership: **Admin.Collaboration** ### **![](https://knowledge.sittadel.com/hs-fs/hubfs/image-png-Jan-19-2024-04-13-05-5511-PM.png?width=125&height=148&name=image-png-Jan-19-2024-04-13-05-5511-PM.png)** ### **Handbook Reference** Package: **Collaboration Security** Domain: **B2B Collaboration Management** Modifies: **Allowed Outbound B2B Organizations** ### **![2024-12-17\_9-49-52](https://knowledge.sittadel.com/hs-fs/hubfs/Canva%20images/2024-12-17_9-49-52.png?width=125&height=103&name=2024-12-17_9-49-52.png)** ### **When to Perform this Operation** As Needed: **Proactive or in Response to User/Security** #### ![](https://knowledge.sittadel.com/hs-fs/hubfs/image-png-Nov-15-2024-06-17-56-3267-PM.png?width=670&height=47&name=image-png-Nov-15-2024-06-17-56-3267-PM.png) ### Technical Description and Importance Managing outbound B2B collaboration domains ensures that users can only share files, folders, and SharePoint sites with approved external organizations. This control helps maintain security by preventing data leakage while allowing necessary business operations. By managing these domains, organizations can align with data-sharing policies and ensure that collaboration remains within defined security boundaries. Regularly reviewing and updating these settings ensures that only relevant and necessary external entities have access. ### Management Options - [Add a Domain for Outbound B2B](https://knowledge.sittadel.com/manage-companies-users-can-access-files-folders-sharepoint-sites-from#Add-a-Domain-for-Outbound-B2B) - [Remove a Domain from Outbound B2B](https://knowledge.sittadel.com/manage-companies-users-can-access-files-folders-sharepoint-sites-from#Remove-a-Domain-from-Outbound-B2B) #### ![2024-12-17\_10-15-21](https://knowledge.sittadel.com/hs-fs/hubfs/2024-12-17_10-15-21.png?width=670&height=81&name=2024-12-17_10-15-21.png) #### Add a Domain for Outbound B2B: > **Purpose** > *Adds a domain to the list of allowed outbound B2B organizations, enabling cross-tenant file and SharePoint access.* > **Use Case** > *A new business partner requires access to SharePoint resources and collaborative files.* #### **Remove a Domain from Outbound B2B**: > **Purpose** > *Removes a domain from the list of allowed outbound B2B organizations, revoking access.* > **Use Case** > *A former partner organization should no longer have cross-tenant access.* *![2024-12-17\_10-15-21-1](https://knowledge.sittadel.com/hs-fs/hubfs/2024-12-17_10-15-21-1.png?width=670&height=81&name=2024-12-17_10-15-21-1.png)* | ###### **Operation** | ###### **Action** | ###### **Target** | | --- | --- | --- | | Add a Domain for Outbound B2B | **Addition** | Allowed Outbound B2B Organizations | | Remove a Domain from Outbound B2B | **Removal** | Allowed Outbound B2B Organizations | #### ![](https://knowledge.sittadel.com/hs-fs/hubfs/image-png-Nov-15-2024-06-17-56-3267-PM.png?width=670&height=47&name=image-png-Nov-15-2024-06-17-56-3267-PM.png) ### Add a Domain for Outbound B2B This operation adds a domain to the sanctioned outbound B2B list, enabling users to share files and collaborate across tenants. **       1. Cross-Tenant Domain Addition** > **       2. Cross-Tenant Domain Outbound Access Addition** > #### ![](https://knowledge.sittadel.com/hs-fs/hubfs/image-png-Nov-15-2024-06-17-56-3267-PM.png?width=670&height=47&name=image-png-Nov-15-2024-06-17-56-3267-PM.png) ### Remove a Domain from Outbound B2B This operation removes a domain from the sanctioned outbound B2B list, preventing further cross-tenant collaboration. **       1. Cross-Tenant Domain Removal** > **       2. Cross-Tenant Domain Outbound Access Removal** > ### Need Assistance? Reach out to your Customer Success Manager to discuss how a Sittadel cybersecurity analyst can assist in managing these tasks for you. New to our services? 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