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Generally, we face so many issues with opencart but, here we will help to resolve a issue which is very common and can be easy resolved by following below steps. So, let’s get started and we hope our step by step guide will help you a lot in resolving this problem.

Issue Details: Faced when we tried to install payment method (Paypal Checkout Integration) or say any extension after fresh install of opencart version 4:

Step 1: Now, you have to click Marketplace and then the Red color error Icon

Step 2: After click on Red color error icon a popup will appear that will ask you to enter the username and Secret

Step 3: Now, you have visit https://www.opencart.com and add your store domain to get the username and secret.

Step 4: Add your store domain and get the username and secret that you can take and paste as per Step 2

Now, you have to click on eye icons to view the API Username and API Secret.

You are done! Cheers

If you find the information helpful please provide your valuable comments that keeps us motivated and will keep on posting amazing solutions.

The post [👍] Signature hash does not match opencart 4 first appeared on PurchaseTheme.