Planning data in metabase?

hoping for the community knowledge :slight_smile:

Does anyone use planning data (so future sales or production data) in metabase? Planning data is something you don´t normally have in your “normal” database so I was wondering how I could do it.

I was wondering if there is another way without having to set up a new table in my production database. Something like importing a single google sheet or just creating a table in metabase containing those data? But I would have to be able to combine the data with my SQL database data when writing queries.

Thanks for any ideas!