A bottle has a clear producer and cuvée, but no year on the front label. The shop listing shows the year you bought it. Those are two different facts. Putting the purchase year in the vintage field makes later searches and comparisons misleading.
Keep vintage and purchase date separate
A vintage identifies the harvest year used for the wine. A purchase date tells you when the bottle entered your collection. They are not interchangeable. For non-vintage wine, select non-vintage or leave the vintage field empty, then save the purchase date in its own field or note.
This matters when you search for all bottles from 2022. A non-vintage bottle purchased in 2022 should not appear beside wines made from the 2022 harvest.
Check the whole label before deciding
Look at the back label, neck label and any producer code. A year printed on packaging may be a release, bottling or lot reference rather than a vintage. The Comité Champagne label guide lists the vintage as optional and distinguishes it from other label information, including a disgorgement date. Source: Comité Champagne label guide.
Do not convert a batch code into a year unless the producer explains the code. Save a photo and the exact printed text when it is useful for future identification.
Record dates that answer different questions
Producer and cuvée: Vintage on label: non-vintage / blank Purchase date: Lot or batch code: Disgorgement date, if supplied: Where the date was found: Source or photo: Note for future comparison:
A disgorgement date can help distinguish releases of a sparkling wine, but it is not the harvest year. Keep it labeled as disgorgement. If your inventory has only one date field, put the extra date in a note rather than changing the vintage field.
Make repeated purchases distinguishable
If you buy the same non-vintage cuvée more than once, use the purchase date, receipt or lot information to distinguish the deliveries. Keep the wine identity consistent so the total remains searchable. Split the records only when the different release information changes how you want to compare or drink them.
When a label scan suggests a year, check it against the physical label before saving. The label-scanning guide explains why recognition needs a human check.