Users replying back to approve the request can't approve anymore if that user's user_name is emptyIssue We have an approval email which will trigger to approvers to approve the request, and who ever approving it when the email returns back Inbound action "Update Approval request" checking for user_name and if that user doesn't have user_name it will not get approvedReleaseQuebec and aboveCauseChange of Script in Inbound action "Update Approval Request" where new Delegation version checks are added which is checking for user_name and if the user_name is empty then the approval will fail New code added is as below in inbound action return new ApprovalDelegationUtil().isMYApproval(current); This is added to handle V2 and V3 versions of delegation'sResolution- We can revert back the code to previous version where it only returns the sys_id of the user - or you can use both version like shown in below screenshot with in the validUser() function of inbound action - we recommend to use combination of both in spite of only returning sys_id if you want it to work for delegated users in future