Why am I getting the error "Collection with this URL already exist" when trying to make changes in page settings on Webflow? I have a page with slug "blog" and a CMS collection with slug "blog", and my structure looks like '…' and '…'. I haven't changed the slugs.
- Webflow doesn’t allow a Static Page and a CMS Collection to share the same slug (e.g., both using
/blog). - To fix, either rename the Static Page slug (e.g., to
blog-overview) or rename the CMS Collection slug (e.g., toposts) to ensure they're unique.
You're seeing the "Collection with this URL already exists" error because Webflow doesn't allow a Static Page and a CMS Collection to share the same slug (in your case, blog).
1. Why This Conflict Happens
- Slug conflicts occur when both a Static Page (like a manually created “Blog” page) and a CMS Collection (like a “Blog Posts” collection) occupy the same URL segment.
- For example:
- A Static Page at
/blog - A CMS Collection with slug
blog, which automatically maps collection pages like/blog/article-title
Webflow routes all CMS items under the collection slug, so a Collection with the slug blog makes /blog a reserved path.
2. How to Resolve the Conflict
You need to change either the Page slug or the Collection slug. You have two options:
Option 1: Rename the Static Page
Go to Pages Panel
Select your Static Blog Page
Change its slug to something else like
blog-overview,all-posts, orarticlesThis will free up the
/blogpath for the CMS CollectionOption 2: Rename the CMS Collection Slug
Go to CMS Collections
Select your Blog Collection
Change the collection slug to something like
postsorarticlesThis allows you to keep your Static Page at
/blog
3. Best Practices for Slug Naming
- Avoid using the same slug for both Static content and CMS Collections
- Use descriptive but unique slugs, e.g.,:
- Page:
/blog - CMS Collection:
/blog-postsor/articles
If you are using the Static Page at /blog to list blog posts, it’s better to design that page as a Collection List wrapper pulling from the CMS rather than relying on Collection pages.
Summary
This error occurs because you have both a Static Page and a CMS Collection using the slug blog, which Webflow doesn’t allow. To fix it, change the slug of either the page or the collection to make them unique.