The name you've selected when creating the publication is also used to create a unique URL to share the publication with. The name will be optimized slightly to align with URL standards.
For example, Indoor & Outdoor catalog 2020 will end up in the URL as indoor-outdoor-catalog-2020.
As long as the publication is offline and before you share the URL with anyone you can update the publication-specific name in the URL in the publication's Settings menu:
- Go the publication Settings by clicking on the name of the publication or via ••• > Settings
- Switch the toggle to Edit URL
- Enter a new unique name to use at the end of the URL
- Click on Save & Update Publication at the bottom of the page.
NOTE: Since URLs are publication-specific the publication name needs to be unique and not used by a different publication within the same group of publications. Also see How can I use the same URL for new publications?