The slug is the the last part of your URL

http://yourname123.tenminutefunnels.com/page-name-123
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1. Open your campaign
2. Hover to the page to see the slug below the page title.
3. Click the slug and start typing in your new page slug, then click enter to save the slug.
4. Publish the page to see the new slug in the URL

 
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1. Open the campaign
2. Click Page Actions
3. Click Change the Page URL/Slug
4. Type in your new slug, then click OK to save.
5. Publish the page to see the new slug in the URL