For computed attribute, do I need to create a dataset by any chance? I see the schema is auto generated, however, I am not getting any data from the attribute that I had created. Am I doing something wrong here?
Computed attributes are created using the XDM fields from all the different schemas in your sandbox and the data in these attributes will show up if you have those XDM attributes are collecting any data in any of the datasets in sandbox. If you only have schemas and no datasets are setup or are not collecting any data then computed attributes won't show any data.