Hello, I tried your example in my Google Sheets file, and it worked in my Looker Studio. May I ask how you connected it to your sheet? Also, what did you mean by ‘Looker Studio doesn’t recognize it’?
I am running into a similar issue. Any suggestions? I have a dataset (CSV file) with long numbers (order ID), but when I loaded the dataset to LookerStudio, it looks like this.
I made sure to change the type to “text” with no luck. The csv is stored in my GCS bucket so I download the file to make sure the csv is not the issue and it is looking normal there.