OpenCart Community

Hello !
Is it possible for admin to create a list of attributes and attributes groups and make them mandatory for sellers with a list of choices in each attribute groups (multi vendor marketplace) ?
For example :
- Condition : New, used, refurbished,...
- Boxed : Yes, no

My problem is that seller can create products without adding my attributes if they want and i want that to be mandatory..

But maybe there is another solution (existing module ?) to solve my problem.

Thanks for your help !

Your question is about a multi-vendor extension, not the OpenCart core. Hence you should get in touch with the author of the multi-vendor extension on this who would be able to customize it according to your needs.