If you can't get TwidoSuite to authorize, stop fighting with old code. Schneider Electric released (formerly SoMachine Basic) as the official successor.
Schneider Electric decommissioned the TwidoSuite activation servers in 2018. Even if you have a valid, unused commercial license, the online validation step may fail. Some users report that offline manual registration still works, but it is inconsistent on Windows 10/11.
No registration codes or activation keys required.
The Modicon M221 has replaced the Twido line.
The registration code is necessary for several reasons: