After reading a few discussions, it seems like the Community is saying that custom tokens can be used in Send Alert flow steps. I've created an Email Script token that replaces a sales rep's SFDC user ID with their email: #if (${lead.Sales_Rep__c} == "XXXXX")first.last@sportngin.com. The token works when used as a merge field in an email, but it doesn't seem to work in the Send Alert flow step. Can anyone help me out?