Hi Santosh/Colleen,
I maintained e-mail address and user id in all the connected systems/clients for the user and his/her manager in SU01 as well as infotype 0105 and subtype 0010 and 0001. Maintained parameter 5023 as "YES" as well.
But still no luck .
Santosh- You mentioned in ur post above that you maintained few number of parameters as well. Could you please share those details ??!!
Thanks- AJ