In dynamic view details panel, it's possible to restrict edit option for customer which year is blank..
You can use Field Logic in Dynamic View to make certain columns read-only, based on certain criteria (see here).
However, Field Logic is run by drop-down lists or symbol columns. What column-type are your year columns? What I mean is, what would be the actual entry that you have as "Test"? Could this be something selected from a drop-down list?
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