Changing relationship type

This is the technical support forum for Toolset - a suite of plugins for developing WordPress sites without writing PHP.

Everyone can read this forum, but only Toolset clients can post in it. Toolset support works 6 days per week, 19 hours per day.

Sun	Mon	Tue	Wed	Thu	Fri	Sat
-	10:00 – 13:00	10:00 – 13:00	10:00 – 13:00	10:00 – 13:00	10:00 – 13:00	-
-	14:00 – 18:00	14:00 – 18:00	14:00 – 18:00	14:00 – 18:00	14:00 – 18:00	-

Supporter timezone: Asia/Kolkata (GMT+05:30)

This topic contains 1 reply, has 1 voice.

Last updated by Minesh 2 weeks ago.

Assisted by: Minesh.

Author

Posts

April 28, 2026 at 9:25 am #2858585

Gian Luca

I have a production site for a client with a one to many relationship type. With a certain (not huge) amount of records. I would need change the relationship to a many-to-many relationship type. Is it possible without breaking the existing data structure?

April 28, 2026 at 12:26 pm #2858656

Minesh

Supporter

Languages: English (English )

Timezone: Asia/Kolkata (GMT+05:30)

Hello. Thank you for contacting the Toolset support.

I'm not sure yet have you created those relationship recently in last four-five years or its legacy post relationship.

*** Please make a FULL BACKUP of your database and website.***
In any case - I strongly suggest before taking any step forward you should take full backup of your database as in any worst situation you will have a backup to restore.

Once you take full backup of your database - try to edit your post-relationship and change it to "Many to Many" and try to save it and check if you able to see it working as expected.