Want to create new rule it should skip the Existing manager approval rule.

Summary:

We have currently expense report approvals are sent to Employee manager and currently only for specific manager we want to route the approvals to another person in order to achieve this I need to create a New rule and it should skip the existing rule when the Expense report approvals go to that particular manager it should reroute to another person.

Please guide me how to make this setup.

Content (please ensure you mask any confidential information):

I have currently added the condition as If expense report owner.manager name is "fusionERP"

then condition given as list builder as a Resource then updated that target user account name to whom the approvals should route, system is routing the approvals to new user but after then it is again assigning back to current manager.