Where the problem occurred: Store Builder CS-Cart 4.17.1
Details of the problem: The problem is with the Banners Management add-on. When I create a new banner and try to add a long URL because of SEO add-on, the URL is being truncated at 256 characters. I was able to do a workaround for this using 301 redirects. But varchar 256 is not enough for a URL in my opinion. This might not be a bug, but it would be worth to reconsider the design.
How to reproduce the problem:
Go to admin panel > marketing > banners. Create a new banner and put a text in the URL field which has more than 256 characters. You will notice that the end part of the text will get truncated without any warning. I have spent 30 minutes trying to find out what the problem was.