Date not readable

A column mapped to a date holds a value that is not a calendar date in a form the node reads: YYYY-MM-DD, DD.MM.YYYY, DD/MM/YYYY, MM/DD/YYYY or an Excel date number. The run stops at the Map Data node rather than carry the value on as text.

What to do

Correct the value on the named row to a real date, or map the field to the right column. If the dates are written day-first or month-first, check that Date format in the node's settings panel matches.

Where it comes from

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