What occurs to a column specified in the "key column" section when transposing in Alteryx?

When a column is specified in the "key column" section during the transposing process in Alteryx, it gets excluded from the transpose operation. The key columns serve as identifiers for records, meaning they retain their original form and are not transformed into multiple rows or columns based on the transpose logic. This is crucial for maintaining the integrity of the dataset because it allows you to keep relevant identifying information intact while performing the transposition on other columns, which are turned into rows.

The transposition itself focuses on the other columns in the dataset, restructuring them while keeping the key columns unchanged. This functionality is particularly useful in scenarios where you want to pivot data while keeping certain fields constant, ensuring that the relationships between the data points remain clear.