CMS item `createdOn` field is null when retrieving through live endpoint after republishing

Reproduction steps:

  1. Create a CMS item
  2. Retrieve the item through the staged and live API endpoints - notice that createdOn is not null for both
  3. Make a change to that item in the CMS and publish
  4. Retrieve the item through the live API endpoint - notice that createdOn is now null
  5. If you do the same through the stage endpoint, you’ll notice that createdOn is not null

To the webflow team: Feel free to DM me for specific CMS item ids

Hey Jason,

Thanks for the note, I’m escalating this with the dev team!

Just wanted to mention, I have also been encountering this issue since last week.

This also seems to be happening with the webhook payload (i.e. the collection_item_changed event payload’s createdOn field is also null after republishing)