To integrate your callhippo account with Opencart, follow these steps.
Log in to your Opencart account.
Go to System > Users (as shown in picture) and click on API.
Now click on the action button (highlighted in picture).
Now copy Api Key and your Opencart website url. Write it somewhere.
In you CallHippo account -
Log in to your account and go to the integrations tab.
Now click on +integrate button and you will be redirected to another page.
Now click on +Connect Your OpenCart and Enter you Api Key and Domain url which you copied earlier and click on Save.
Now it should say Datasource is linked. Click on Ok.
Now click on next and your will be redirected to your callhippo account and your status will be changed to Integrated.
You have successfully integrated your Opencart account with callhippo.