We have a Umbraco website that uses Google Maps API with location markers.

After the change in rules this year we added a payment card and enabled billing however our quota was reached and the billing was de-activated.

I have now enabled the billing and assigned the Map API to it and have also generated a new API key that is being called from the site header.

We are now receiving the following error in the Tiny MCE Editor backoffice only "For development purposes only" whereas on the front end it is fine, any idea why it is showing the error in the backend of the CMS?

Google Maps Platform API Checker states - ERROR: This site doesn't seem to be using an API key. Keyless usage will soon be deprecated. Please set up and secure a key for your project.

From what I can see theres a Google Maps for Umbraco plugin that I am assuming asks for the API on installation but its not set anywhere in the code and I cant seem to see where to set it in the back office either.

I also do not want to mess up the existing functionality by uninstalling and re-installing but I dont think there is any other way to make this work.

So where do I add this key in the backoffice so that the error goes away?

Please can someone help? Thanks in advance!