The Content Controls fields cannot be edited in Word Online after check-out from Vault.
Word Online 365 does not support the Add or Edit operations on the Content Controls. In the Editing view of the Word file, field content and Content Controls are displayed. They cannot be edited or updated.
- Check-out the Word file locally.
- Add or Edit the Content Control Fields in the Word file, then Save the changes.
- Check-in the Word file to Vault.
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