Profile: userA-2

Problem:

How to add or edit Toolset custom fields via REST API?

Solution:

Toolset custom fields use the native WordPress methods and you would do the same steps like you want to edit a native WordPress custom field.

The only difference is that in the native WordPress functions you should add the "wpcf-" prefix to the Toolset custom fields names.

Relevant Documentation:

https://toolset.com/forums/topic/what-does-the-json-request-look-like-to-update-custom-field-values/page/2/#post-2666487