Today, some querys in supermetrics began to fail with this kind of errors:
Error: 400 Unknown metric(s): ga:transactions, ga:transactionrevenueFor details see https://developers.google.com/analytics/devguides/reporting/core/dimsmets. You should try fetching Item revenue instead of Transaction revenue.
These querys worked fine during months so I cannot explain the reason for this problem.
If you change something in the query, such as the date range or even the order in the metrics, the results are fine and the error desappear.
The data in the GA account and in the views is OK.
Why can this be happening? Are there any solutions?