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Configure column mapping

Next, you need to configure the column mapping for the locations and for the flows tables. You need to tell the app which columns are which by selecting the respective column names from the dropdowns.

Locations column mapping

The locations table must have columns with unique ids, latitude and longitude:

Flows column mapping

The flow table must contain columns with the origin ids, destination ids and the flow counts:

Time is an optional column. If you have a time column, you can use it to filter and animate the flows over time.