A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.
Dear John,
It sounds like there may be some confusion between the sharing link setting and the people picker, which is a very common mix-up. The short answer is that you almost certainly do not need to find a group at all. To make a file available to everyone in your company, you should change the link setting rather than search for a group in the people box.
When you select Share, look for Link settings (usually a gear icon or the current setting displayed at the bottom of the dialog). Among the options you should see:
- Anyone with the link, including people outside your organization.
- People in your organization, which gives anyone in your organization access.
- People with existing access, which changes nothing and simply generates a link.
- People you choose, which is where the people picker applies.
Selecting People in your organization is what you are after. Helpfully, this option displays your organization's actual name, which also answers your question about identifying it.
The reason you are seeing "you can only share within your organization" is likely that you are selecting groups in the Specific people box, which is intended for named individuals or specific groups rather than the whole company.
One thing worth noting: if that option is greyed out or missing, your SharePoint administrators may have restricted it.
For reference: Share files with my team members | Microsoft Support
If that does not resolve it, could you share a screenshot of the Share dialog, with any sensitive information obscured? That will make it easier to determine whether this is a permissions configuration issue or simply the wrong sharing option being used.
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