How can I add the dimensions Campaign name, Campaign medium, Campaign source, Campaign keyword, Campaign content to a custom report?

If you want to add the dimensions like Campaign name, Campaign medium, Campaign source, Campaign keyword, Campaign content to your Custom reports, you can do that just by installing Marketing Campaigns Reporting plugin. By default these dimensions are not available in your Custom report except keyword. Once installed you will find the parameters under Acquisition.

Matomo Cloud Business and Enterprise customers will already have the Marketing Campaigns Reporting plugin configured.