Error: CMN.ATO.GEN.410009 - "The Tax Agent number has failed the Tax Agent number algorithm check."

Solution: 

1. Check your tax agent number via Gear wheel > Profile, check and update the following information if needed

2. Check the status of your ATO connection via this "ATO" tab > Software

This should show as "Successfully connected"

If the status is not yet connected, please press (below)

Copy the software ID that you can see from your end.