If Line manager is missing then approval should route to Parallel then resource to approve

Summary:

Hello,

We need to add a rule for users who do not have a Line Manager assigned, such as the CEO.

For these users, we would like to skip the Line Manager approval stage and proceed directly to the next stage, HR Approval(parallel, who response first), followed by FIN Approval(resource).

How can we achieve this through the workflow configuration?

Regards,

Content (please ensure you mask any confidential information):

the details of the stage of " line manger" approval

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):