ProWebExp – Content Sync & Duplicator provides two duplication and synchronization modes:
In Multisite mode, the plugin can copy content between network sites, including custom fields, taxonomies, post metadata, featured images, and images stored inside custom-field values.
The plugin copies post content, taxonomies, post meta, featured images, and attachment IDs stored inside nested custom-field values.
For ACF and other custom-field systems, the plugin processes stored post-meta recursively. Image IDs that resolve to WordPress attachments are imported into the destination Media Library and replaced with destination attachment IDs.