Smartcloud rejects name lookups for short names using the Soundex algorithm.
Directory catalog does not return users with shortname pattern (A-Z)+(0-6)+(0-6)+(0-6) to be found in namelookup due to Soundex . Customer have many users with shortname that works with Soundex algorithm.
When a service/SCN user tries to lookup an On-Premises user using the ShortName (for example: A234), the user is not found. If press the button F9 show the error:
a234 not located in the list of names and addresses or in any Domino directory. Choose Ok to skip or cancel to stop.
Reference: Lotus Notes SPR # RDSRB3WJMX