If you are using ZappySys SharePoint Online Connector, you may encounter the following challenge when selecting the Site ID Parameter in the connection UI due to permission or UI limitations.
- Your Microsoft Graph permissions are limited, and you cannot list all sites (Throws access denied error)
- Your Site ID is not listed in the SharePoint Connector UI (Due to the maximum limit for items in the drop-down)
Regardless of the above issue, you can still manually build the full siteId by using the classic SharePoint REST API directly in your browser.
Step 1 — Open the Site in Your Browser
Go to your SharePoint site, for example:
https://YOUR-COMPANY.sharepoint.com/sites/MY-SITE-NAME
Keep this tab open — you’ll use it as the base URL for the next step.
Example:
Step 2 — Find the Site Collection ID
In the same browser window, navigate to this URL (append _api/site/id):
https://YOUR-COMPANY.sharepoint.com/sites/MY-SITE-NAME/_api/site/id
You’ll see an XML or JSON response showing the Site Collection ID GUID:
<?xml version="1.0" encoding="utf-8"?>
<d:Id xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices"
xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata"
xmlns:georss="http://www.georss.org/georss"
xmlns:gml="http://www.opengis.net/gml"
m:type="Edm.Guid">37bb36ba-49b5-4f39-a627-d0xxxxxxxx</d:Id>
Copy that value — this is your Site Collection ID. (example: 37bb36ba-49b5-4f39-a627-d0xxxxxxxx )
Step 3 — Find the Web ID
Now open this URL (append _api/web/id):
https://YOUR-COMPANY.sharepoint.com/sites/MY-SITE-NAME/_api/web/id
The response will show the Web ID GUID:
<?xml version="1.0" encoding="utf-8"?><d:Id xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns:georss="http://www.georss.org/georss" xmlns:gml="http://www.opengis.net/gml" m:type="Edm.Guid">fbaac4df-73da-469a-86fa-b3xxxxxxxx</d:Id>
Copy that value — this is your Web ID.
Step 4 — Build the Full siteId
Combine the three parts in this exact order:
{hostname},{site-collection-id},{web-id}
Example
your-company.sharepoint.com,37bb36ba-49b5-4f39-a627-d0xxxxxxx,fbaac4df-73da-469a-86fa-b3xxxxxxx
You can now use this value in Microsoft Graph API calls such as:
GET https://graph.microsoft.com/v1.0/sites/{siteId}/lists
Your URL in API call may look like this
https://graph.microsoft.com/v1.0/sites/your-company.sharepoint.com,37bb36ba-49b5-4f39-a627-d0xxxxxxx,fbaac4df-73da-469a-86fa-b3xxxxxxx/lists
Summary
| Value | Example | Source |
|---|---|---|
| Hostname | your-company.sharepoint.com |
From site URL |
| Site Collection ID | 37bb36ba-49b5-4f39-a627-d0xxxxxxx |
_api/site/id |
| Web ID | fbaac4df-73da-469a-86fa-b3xxxxxxx |
_api/web/id |
| Full Site ID | your-company.sharepoint.com,37bb36ba-49b5-4f39-a627-d0xxxxxxx,fbaac4df-73da-469a-86fa-b3xxxxxxx |
Combine all |
Now you can use this value on your SharePoint API Connector UI like below
