1. Make the Registration & Listing simple 

- Only if you keep the registration process and product listing as simple as possible, you will get more sellers registered. Ideally, it should contain the minimum fields required and a user experience that is easy and exciting.The application must be integrated with social media connect login/signup.

2. Easy Search, Fast Results

- Search functionality is obviously the most used feature of any multi vendor eCommerce script. Users should find it easy to perform advanced search operations and the results to be shown fast. If it is going to take ages or the search feature itself is too complex and not user friendly, you are losing again

3. Simple reviewing

- Engagement to your Multi Vendor Marketplace Software happens only with lots of real user reviews.

4. Enhance your payment options

- Next optimization could be on making your payment options very flexible allowing for maximum payment options. While offering lots of payments option to end customer, it is your duty to make it neatly categorized and show them organized.