Problem connecting looker studio connector with matomo/wordpress

Hello.

I’m trying to connect looker on a matomo for wordpress with the official connector, but it doesn’t work.

Following the documentation, I have:

  • unblocked password authentication in the plugin config.ini

  • created a dedicated user XXX in wordpress for the connection

  • generated for this user a token YYY for an application ZZZ

Then I tried to connect looker with:

  • user: {website url}/wp-content/plugins/matomo/app

  • token: ZZZ:YYY (but I also tried XXX:YYY)

But in all cases, I get the message:

Sorry, your credentials have been sent, but they are invalid.

What did I forget or do wrong?

Thank you for your help.
[edit: I also tried to switch the role of XXX from “matomo view” to “matomo write”, and even “Matomo super admin” to test, but no luck]