When configuring the Transpose tool, how many Key Fields can be selected?

In the context of the Transpose tool in Alteryx, the configuration allows for the selection of only one Key Field. This Key Field serves as a unique identifier for each record, ensuring that the data can be correctly organized during the transposition process. When data is transposed, the Key Field remains constant while other fields are transformed into a new structure, effectively creating a format where values are represented as rows based on the Key Field.

Selecting only one Key Field simplifies the process, allowing for clearer data management and analysis. Attempting to select multiple Key Fields would complicate this transformation, potentially leading to ambiguous or nonsensical data structures, which is not supported by the tool's functionality.