Hi @Oleg.Deribas,
You are correct in that these two step-templates do appear to differ in how they function with respect to authenticating the Azure account. I’m digging more into that.
You can authenticate with that Azure Powershell module using Connect-AzAccount, as noted in that error, at the beginning of your script. Octopus will make variables available to your script, and you can access them there. You can see one example of this here and also Azure account variables are documented here.
I hope this helps!
Thanks,
Mark