Hi there!
Sorry for any delay!
At the moment the Collection description length is intentionally limited and that limit is enforced on the SureCart platform side for performance reasons, so there isn’t a setting to “increase the max characters” for the default output.
If you need longer text under the Collection name, the recommended approach is to customize the Collection page output:
- Full Site Editing (block themes): Create a Collection Archive template and add additional blocks/content where you need it – https://d.pr/i/FlXRwJ
- Page builder sites: Add the extra content using your builder on the Collection page/template – https://d.pr/i/behrWq
- Classic themes: Create/override the taxonomy template in PHP and output the full description there.
This way you can show as much text as you want, but with full control over layout and performance.