Day and month order unclear

A date column could be read day-first or month-first, and nothing in it settles which. Either every date fits both readings, such as 01/02/2026, or some dates can only be day-first and others only month-first. A wrong guess would swap day and month in every date without looking wrong, so the run stops at the Map Data node.

What to do

Set Date format in the node's settings panel to day first or month first. If the column mixes both orders, correct the dates written the other way in the source file. Once the order is chosen, every date that does not fit it is reported by row.

Where it comes from

Shown by Map Demand History, Map Transport. It is one of the messages about a node.