> This page is for Release Notes.

> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://mailchimp.com/developer/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://mailchimp.com/developer/_mcp/server.

# Removing Campaign tracking tags

You can now remove the tracking slugs for `google_analytics` or `clicktale` when you [update Campaign tracking](/developer/marketing/api/campaigns/update) by passing in an empty string.

There was a bug that caused empty strings to be ignored when setting these properties. We’ve fixed updating Campaigns to properly handle these fields: no change if they’re not included in the PATCH body, but removed if they’re passed in as an empty string.