Here are the general steps you can follow to create a multi-vendor e-commerce admin panel:
Determine the features and functionality you want to include in the admin panel. This will depend on your specific requirements and may include features such as vendor registration, product submission, order management, and commission calculation.
Design the database schema for the admin panel. This will involve creating tables to store the different types of data you want to store, such as vendors, products, orders, and commissions.
Write the server-side code for the admin panel. This will involve creating PHP scripts to handle requests and responses, interact with the database, and render the HTML pages for the front end.
Write the frontend code for the admin panel. This will involve creating HTML, CSS, and JavaScript code to create the user interface for the admin panel and make it interactive.
Test and debug the admin panel to ensure that it is working correctly.