Migrate contents between fields?
I've managed to achieve something which works in the least technical way I can think of. Other solutions might involve migrating data directly within the database, but I figure this is a good starting point. 

Let me know how you get on.


Create an RSS feed, ensuring that the data you want to move is populating the feed.


Here's a RSS template from the CraftCMS documentation...


Grab the FeedMe plugin...


Within FeedMe, the Entry Title is required for it to work, so, if the Entry Title is what you need to move to another field, you will need to make sure  it appears more than once within a RSS-item e.g.

        {% for entry in craft.entries.section('location').find() %}
        &lt;item&gt;
            &lt;title&gt;{{ entry.title }}&lt;/title&gt;
            &lt;link&gt;{{ entry.title }}&lt;/link&gt;
            ...
        &lt;/item&gt;
        {% endfor %}


In my test example, I have a Channel called 'Locations' - the Title field contains names of Cities.

I want to migrate these Titles, to a new custom field called 'City name'.


Within FeedMe, create a new Feed, choosing the destination Section and Content Type. Hit the 'Save &amp; Continue' button.
The last screen of FeedMe allows you to 'field match' (assign) the different RSS tag content, to a specific field e.g. 'Link' -> 'City name'. See image below...




In my test, I migrated field contents between two fields within the SAME Section and Content-Type.

Thoughts welcome.