expenses delegation for inactive employees

Summary:

I have two questions related to processing expenses for inactive employees.

The standard process is to delegate expenses of the inactive employee to his/her manager. When the manager gets the delegation notification, the manager can choose to accept the delegation or assign the delegation to someone else. My first question is what happens if the manager does not take any action ( accept or reassign). Do the expenses stay with the inactive employee?

If expenses stay with the inactive employee, is there a way I can default to delegation acceptance for managers?

Content (please ensure you mask any confidential information):