I am trying to create the "Add Product" grid in admin panel in my custom module. I managed to create the grid and the Add product button is also getting displayed.
The issue here is on clicking the Add product button I am getting some JS errors and the page reloads without any of the products being added in the grid.
The error I am facing is,
configure.js:326 POST admin/sales/template/loadBlock/key/9d1f4989a90d8933aea24fc9668fe432525b25d15d53b442a03d0b5c5b89b12d/block/search,items,shipping_method,totals,giftmessage,billing_method?isAjax=true 404 (Forbidden)
How can I add the products in the product grid in my custom module. Please can anyone help me with the issue?