Magento 2, You can create a plugin to TotalsInformationManagementInterface of Checkout Module to modify or change quote total.
An Interface responsible for Calculate quote totals based on address and shipping method.
How to get Customer Order collection by Customer Id Magento 2?
Get Customer Order collection using Magento 2 Programmatically is a simple task using creating a single Block class in the module.
Customer has multiple orders and we have requirement like gather all the customer orders for a site, in this case this article is used.
Error PayPal gateway has rejected request. Security header is not valid (#10002: Security error) PHP Magento 2.
When you have set up a Payment Method as Paypal for your eCommerce store and might be you have faced the error of the Paypal gateway has rejected the request in Magento 2 or PHP Web application.
The error will be,
PayPal gateway has rejected the request. Security header is not valid (#10002: Security error)