> ## Documentation Index
> Fetch the complete documentation index at: https://support.servicem8.com/llms.txt
> Use this file to discover all available pages before exploring further.
# How do I link existing client sites to a head office?
> Find out how to link existing client sites to a head office in ServiceM8.
From the Online Dashboard, you can link one or more existing clients as sites to a head office. Take this action if all work completed at the client site is paid for by the head office. See [this article](/help-center/servicem8-add-ons/client-sites/client-sites-overview) for more information about client sites and the free Clients Sites add-on.
**Note that before you can link an existing client to a head office, the head office must be set up as a client in ServiceM8.**
## To link one or more existing clients to a head office:
1. From the Online Dashboard, click **Clients**.
[
](/images/004-950-769-9dd8e074-f2c0-4acd-a1f7-f11e4461a247.png)
1. Find and select the existing client you want to add to a head office. You can select more than one location at once.
2. Click **Actions**.
3. Click **Assign to Head Office**.
1. A pop-up window will appear. Start typing the name of the head office site in the search bar and click it when it appears.
1. Click **Update**.
The Clients list will now refer to the existing clients as sites, with the head office name indicated below the client name.
[
](/images/004-950-784-d522dded-fa89-47d6-af99-c9f4cc2bb310.png)
If you open the head office site, you will see the existing clients now listed under the **Sites** tab.
