The Review W2 process prepares the W2 data for the current Company for generating.
This process is very similar to the 1099 Review process but only applies to W2 forms. An almost identical review screen appears.
This example Window shows problems with the Filer information as well as the Payer/Employer data.
Once you are satisfied that there are no issues or missing data, click the "Mark as Ready to File..." and the Form will then appear in the Ready to Generate window.