Final answer:
When you cannot find a member in the system, you can use interaction with Non Member as an option.
Step-by-step explanation:
When you cannot find a member in the system, you can use interaction with Non Member as an option. This means that instead of searching for a specific member, you can interact with a non-member for a particular purpose. For example, in a messaging system, if you cannot find a specific user, you can still send a message to a non-member. This interaction allows you to carry out certain actions even when a member is not found in the system.