VLookup reference to another sheet only returns errors

sgroot
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Why can't I return any values with VLookup?
- On my customer sheet I have a column for Baseline Fee
- In the Baseline Fee field, I enter =Vlookup
- Click Reference Another Sheet
- On my pricing sheet the columns are Baseline and then Fee (currency USD)
- I've tried selecting Baseline and Fee columns, just Fee, just Baseline every single time I get "Incorrect Argument Set" or "Unparseable"
- I've removed Currency formatting on the column and still it doesn't work