FieldLock Sync Guard for ACF detects ACF field-group JSON files that do not yet exist in the WordPress database or have a newer modified timestamp. While a sync is pending, it:

Shows an administrator notice with a link to ACF’s sync screen.
Lists each pending field group and explains why it needs syncing.
Disables the Update button on ACF field-group edit screens.
Shows an inline explanation and sync link on locked edit screens.
Blocks normal field-group saves on the server.

Private Local JSON files are ignored. Detection is cached briefly and runs only in the WordPress administrator. The plugin works with ACF and ACF PRO, and does not include ACF.

FieldLock Sync Guard for ACF is an independent compatibility plugin and is not affiliated with, endorsed by, or sponsored by the owners of ACF or ACF PRO.

The plugin makes no remote requests, collects no telemetry, and contains no upsells.