User getting logout from ServiceNow instances while trying to login through SSO

[Sonakshi Priya1]

User getting logout from ServiceNow instances while trying to login through SSO. Few users are getting logout as they try to sign in into servicenow through sso. Please provide insights what can be the cause  for this ?

[Mehta]

@Sonakshi Priya1 

1) Are there multiple SSO deployed on this instance?

2) Is this instance on Domain Separation ?  

[Sonakshi Priya1]

@Mehta 
1) Yes, there are multiple SSO deployed.
2) The Instance is on Domain Separation.

[Mehta · Accepted solution]

In that case, Your Username should not be same for 2 domain. If there is duplicity of userid on 2 different domains than System by default be always logout the user as the system will be unable to understand against which user id it should authenticate and provide access.

[Sonakshi Priya1]

@Mehta 

Thanks, It is working.