How can you validate that a date field has been transformed to the desired format?

Validating that a date field has been transformed to the desired format can be effectively accomplished by previewing the result of the transformation. This method allows you to directly observe the output of the transformation process, ensuring that the date field displays in the format you expect. When you preview data, you can compare the transformed results against your predefined format specifications, which provides immediate feedback on the accuracy of the transformation.

Other options might involve reviewing the original dataset, making API calls, or exporting data, but these methods do not provide the direct and immediate confirmation of the transformation's accuracy in real-time. For example, checking the source dataset will not show how the date has been altered, sending a test API call may not reflect the transformed format, and exporting the dataset could introduce additional steps that delay validation. Therefore, previewing the result of the transformation is the most straightforward and efficient way to confirm that the date field is accurate and aligns with the desired format.