42Works Multisite CPT Migrator

Description

For WordPress Multisite networks: copy a post from one subsite to another while keeping everything intact.

This plugin is built for sites with rich content models — custom post types backed by Advanced Custom Fields, where each post can contain deeply nested repeater rows, image galleries, and links to other posts. The cloner walks all of it, re-uploads attachments into the target subsite’s media library, and re-resolves post references on the target by slug.

Every copy is created as a fresh draft. Existing posts on the target are never overwritten or modified. If something can’t be transferred cleanly (an image fails to copy, a referenced post doesn’t exist on the target, an ACF field group has drifted), the plugin flags it on the cloned draft with a yellow warning panel so the editor sees exactly what to fix before publishing.

What gets copied

  • Standard post fields (title, content, excerpt, date, menu order)
  • Featured image — re-uploaded into the target site’s media library
  • All ACF field values, including deeply nested repeaters, groups, and flexible content
  • Image, file, and gallery attachments — re-uploaded; never linked across sites
  • post_object, relationship, and page_link references — re-resolved by slug and post type on the target
  • Page parent — re-resolved by slug
  • Taxonomy terms — matched by slug; missing terms are auto-created

What gets flagged

A yellow notice on the cloned draft lists anything that needs human review:

  • Images that failed to copy re-upload manually
  • References to posts that don’t exist on the target pick the right one
  • Page parent that doesn’t exist on the target set manually if needed
  • Taxonomy terms that had to be auto-created verify or merge
  • ACF field-group drift (fields on the source that don’t exist on the target)

The panel disappears automatically the first time the post is published, or can be dismissed manually.

Requires WordPress Multisite and Advanced Custom Fields Pro (repeater, gallery, and flexible content are Pro-only field types).

Screenshots

Installation

  1. Upload the 42works-multisite-cpt-migrator folder to /wp-content/plugins/, or install via the Network Admin Plugins Add New uploader.
  2. Network Admin Plugins Network Activate.
  3. Go to Network Admin Settings MultiSite Post Cloner and tick the post types that should be clonable across subsites.
  4. On any subsite, open the list for an enabled post type. Each row gets a new “Copy to location…” action — click it and choose a target subsite.

FAQ

Does this work on single-site WordPress?

No. The plugin requires Multisite — its whole job is moving content between subsites in the same network.

What gets copied?

Standard post fields, the featured image, every ACF field value (including nested repeaters, groups, and flexible content), all attachments referenced from those fields (re-uploaded into the target site’s media library), post references (re-resolved by slug and post type on the target), the page parent (also re-resolved by slug), and all taxonomy terms (matched by slug; missing terms are auto-created).

Why are some fields empty after copying?

The plugin is intentionally conservative. If a referenced post doesn’t exist on the target subsite (or matches multiple candidates), the reference is left empty and flagged on the warning panel rather than silently guessing. Same for unmatched page parents and failed image transfers. The warning panel on the cloned draft lists every item that needs your attention so nothing slips through unnoticed.

Does this work with Gutenberg and the Classic Editor?

Yes, both. The warning panel renders in either editor.

Does this require ACF Pro?

Yes. The plugin’s value comes from walking deeply nested field structures, and repeater, flexible_content, and gallery are ACF Pro-only field types. ACF free does not provide the structures the cloner is built around.

Can I undo a copy?

Each copy is an independent draft on the target subsite. To undo, just delete the draft. The plugin never modifies or deletes anything else — the source post is untouched and there is no two-way sync.

Reviews

There are no reviews for this plugin.

Contributors & Developers

“42Works Multisite CPT Migrator” is open source software. The following people have contributed to this plugin.

Contributors

Changelog

0.2.0

  • Configurable per-network list of post types eligible for cloning, at Network Admin Settings MultiSite Post Cloner.
  • Dynamic ACF field-group discovery — no hard-coded group keys.
  • Support for post_object, relationship, and page_link reference fields, with conservative slug + post-type matching.
  • Page parent and _wp_page_template carried to the target.
  • Field-group drift detection.
  • Taxonomy auto-create reporting.
  • Persistent warning panel on the cloned draft listing anything that needs review before publishing.
  • WP-CLI: wp mspc copy <source_id> --to=<blog_id>.