Restrict supplier name length.

Summary:

we are required to restrict the supplier's name length to 60 characters instead of 360 characters.

Content (please ensure you mask any confidential information):

I tried using Sandbox but it worked as a display character limit instead of limiting the characters while creating the Supplier. Is there any alternative way to achieve this?

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):