Connect Multiple Salesforce Orgs to a Single Slack Workspace | Did You Know 

Nice! Very helpful.

we useing multiple salesforce orgs and those username has differnt, because it has to unique. (※ Error: Duplicate Username. The username already exists in this or another Salesforce organization. Usernames must be unique across all Salesforce organizations. To resolve, use a different username (it doesn't need to match the user's email address)) so when we create new connection in slack, it comes error cause doesn't match username. how can we fix this? could you help this problem?