@elliot
Maybe a migration tool can be difficult to implement, but looking at ACF, the possible solution to this could be implementing a function just to recheck the fields inside each group and make corrections on metadata. A button on the page that list the groups could start this tool.
Workflow to migrate content could be:
- Create a group;
- Create the fields and set each field name to the name already used in the content;
- Set the group to the post type or any other content;
- Press a button to start rebuild groups;
- The tool gets each group, open the content and check for each field name in that content, if missing the connection field_98f7s8f it writes to this content.
This is my idea, I want to listen your opinion, maybe you already have a simple solution to this.
