Installation document for Royal Mail Click and Drop API for Opencart 3.x
Please make sure you have set the correct permissions for the software as in the list below.
|Administrator permission for OCMOD(How to use OCMOD Opencart ?)||Important|
Method 1: Directly upload from only one xxx.ocmod.zip file
: You must extract downloaded zip file to get the installation file. File name must have the extension [extension] OC v*.* - v*.*.ocmod.zip,
so you should not change the file name under any circumstances.
Firstly, go to your Opencart admin panel -> Extensions -> Extension installer -> Upload your file -> Continue
Method 2: https://mmosolution.com/blogs/how-to-use-ocmod-opencart-by-FTP-without-extension-installer.html
Secondly, you should go to Modifications -> Click refresh and clear buttons as per image below:
Go to Extensions → choose type -> module as image 3
then Find [extension] and click install as image 3.1
[extension] is now installed and configured. You can access it from Extensions > type Module > [extension] then click [ Edit ]
In there you can see a link for get Royalmail API