No valid recipients resolved

We have a sent functionality having "Appian Group" in the To field. Group have users and it is working fine in our DEV and SIT environment.
But the problem is, not working and getting this error in UAT and PROD environment alone.

I gone through some existing threads and they suggested to use toemailrecipient() function. We didn't use, but it is working good in DEV and SIT. So, please suggest what could be teh problem with higher environments.

Problem:  An error occurred in executing an Activity Class.

Details:  No valid recipients resolved

Recommended Action:  Examine the activity class to correct the error and then resume.

Priority of this problem: High Priority

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Parents Reply
  • One more finding:
    Email configured to send email to Appian grp1 (in TO field). Appian grp2 is a member of Appian grp1 and in sync with AD. There is a member in Appian grp2 as direct and indirect to Appian grp1.
    1) If I add a direct member to Appian grp1, I am able to get the email successfully.
    2) Instead, If I reconfigured to use Appian grp2 in TO field which already have a direct member added through AD sync, it is NOT working.

    I don't where it is getting break

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