Hi @Anonymous ,
I will use names in blue - replace them with your names.
Your Source data name is Tracked for the ones you are looking for.
The column name in this is TrackedLocation
The column in the main list Locations is Location
So try this on the Items property for the gallery
Filter(
Locations,
isBlank(
Lookup(
Tracked,
TrackedLocation = Locations.Location,
TrackedLocation
)
)
)
I have tried to keep this delegable. There is a less complex solution using In if you have a data source under 2000 records.
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