Hi YOR,

Thanks for reaching out. Did you ever find an answer for this issue?

Are these company data files shared using RDA? Use of Remote Data Access with Sage 50 Canada versions 2021.2 and newer try to have the same sysadmin Sage ID in use for the machine the logon was initially used on. So, this greyed out login screen as shown in your screenshot may be in place to limit the switching of users logging on using the same machine to prevent issues with file access. Here's an article with some more details.

If you are still looking for guidance, please let us know and we can try to point you in the right direction or suggest some resources or next steps.

Warm Regards,

Erzsi