VDA reported Citrix Profile Management  event id 2002 but no user logon failure during error time.

1. Check VDA event log if there is some connection failure during error time.

2. Find the error connection session from ddc and StoreFront event logs.

3. If no logon failure and clarified the error session then just ignore this harmless error.

Problem Cause

This error indicates there is an error happened when Citrix Profile Management tried to extend a user profile but the user logon session has been disappeared.

Referring to MSDN document we can conclude this issue is by design.
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https://msdn.microsoft.com/en-us/library/windows/desktop/ms681385(v=vs.85).aspx
 
ERROR_NO_SUCH_LOGON_SESSION
 
1312 (0x520)
 
A specified logon session does not exist. It may already have been terminated. Issue is possibly caused by user canceled logon before logon request going to VDA. You can find the user logon request from ddc and StoreFront event logs.