## Description
Use the check to see if a user has access to OneDrive/Exchange to also see if the user exists. This does not stop the population of GraphConnector users every time an instance is created, but does move us one step closer to that
Manually tested the following cases:
* backup "*"
* backup single existing user without error
* backup multiple existing users without error
* error when attempting to backup user that doesn't exist in the same domain
* error when attempting to backup user that doesn't exist in a different domain
Sample error output (progress disabled):
```text
No backups available
Error: 1 error occurred:
* Failed to run Exchange backup for user foo@other.onmicrosoft.com: doing backup: producing backup data collections: resource owner [foo@other.onmicrosoft.com] not found within tenant
```
## Does this PR need a docs update or release note?
- [ ] ✅ Yes, it's included
- [ ] 🕐 Yes, but in a later PR
- [x] ⛔ No
## Type of change
- [ ] 🌻 Feature
- [ ] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Test
- [ ] 💻 CI/Deployment
- [x] 🧹 Tech Debt/Cleanup
## Issue(s)
* #1547
## Test Plan
- [x] 💪 Manual
- [ ] ⚡ Unit test
- [ ] 💚 E2E
Corso
Corso is the first open-source tool that aims to assist IT admins with the critical task of protecting their Microsoft 365 data. It provides a reliable, secure, and efficient data protection engine. Admins decide where to store the backup data and have the flexibility to perform backups of their desired service through an intuitive interface. As Corso evolves, it can become a great building block for more complex data protection workflows.
Corso is currently in Beta.
Corso supports M365 Exchange and OneDrive with SharePoint and Teams support in active development. Coverage for more services, possibly beyond M365, will expand based on the interest and needs of the community.
Getting Started
See the Corso Quickstart on our docs page.
Building Corso
To learn more about working with the project source core and building Corso, see the Developer section of the Corso Documentation.
Roadmap
You can learn more about the Corso roadmap and how to interpret it here.
If you have feature requests, please file a GitHub issue
and attach the enhancement label to the issue.
Contribution Guidelines
Code of Conduct
It's important that our community is inclusive and respectful of everyone. We ask that all Corso users and contributors take a few minutes to review our Code of Conduct.
License
Corso is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.