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ERROR_CHECKOUT_REQUIRED
The repository requires an explicit checkout before editing
ERROR_CHECKOUT_REQUIRED is a Win32 result associated with versioned or managed document repositories.
What the result means
The file must be checked out before the requested save or modification.
What to check
- Confirm that the target library enforces checkout.
- Perform checkout using the repository API under the same authenticated identity.
- Check whether the item is read-only because it is published, approved, or locked by policy.
- Retain local changes until checkout succeeds or the user chooses another destination.
Recommended handling
Do not repeatedly retry a normal file write. Complete the repository workflow first, then save and check in according to its versioning rules.
References
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