# How to invite users to a workgroup on BaseSpace Sequence Hub (Professional or Enterprise tier)
BaseSpace Sequence Hub (BSSH) is the Illumina cloud-based platform for data management, storage, and analysis. There are three BaseSpace Sequence Hub subscription tiers - Basic, Professional, and Enterprise. The [Workgroup](http://www.illumina.com/informatics/research/sequencing-data-analysis-management/basespace.html) feature for the Professional and Enterprise tiers gives BaseSpace Sequence Hub users access to pooled resources. A workgroup consists of users who share data, storage space, and other resources. Only the workgroup administrator (admin) can add users to a workgroup, as described in the steps below.
1. Log into BaseSpace Sequence Hub. Switch to the workgroup by selecting the user name in the top right corner and select the workgroup. Select the user name again and select **Settings**. Then select **manage workgroups.**\
2. Select the workgroup to which you want to add users to (ILMN\_TechSupport is the name of the workgroup in this example).\
3. Select **USERS** on the left panel. Do not use the Invite option on the Administrators screen. The Invite option will invite the user as an admin only. A Professional workgroup can have only one admin.\
4. Select **Invite**.\
5. Add the BaseSpace Sequence Hub User IDs of your collaborators and make sure that **Has Access** to Sequence Hub - US (or EU, for the European Union instance) is selected. Then select **Grant access**\
6. Enterprise domain users only: There are two options to invite users either via a collaborative Enterprise domain account or via public Illumina account
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After configuring new users, go to the **Users** tab via [Admin Console](https://help.connected.illumina.com/account-management/admin-console) to have access to a list of all the users invited and their respective permissions to different applications in a workgroup. "Has Access" will appear for applications the user can access, while a dash will indicate applications the user does not have access to.
Users can be selected to open a detailed view showing which workgroup the user is part of and the applications those workgroups have access to. 
To change permissions, select the **"Change Access"** option in the top right corner.
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| *For any feedback or questions regarding this article (Illumina Knowledge Article #2874), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000002874%20-%20Instrumentation%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |
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