What is the Longest Available Agent?
The Longest Available Agent, also known as the Longest Waiting Agent, is the agent who has been available to receive work for the longest period of time.
This routing method sends the next suitable customer interaction to the eligible agent who has waited the longest since completing their previous interaction or after-call work.
It is commonly used in contact centres to distribute work fairly and reduce unnecessary agent idle time.
How does Longest Available Agent routing work?
When an interaction enters the contact centre, the routing system identifies which agents are available and qualified to handle it.
The system then compares how long each suitable agent has been waiting for work. The interaction is offered to the agent with the longest available time.
For example, if one agent has been available for three minutes and another has been available for one minute, the interaction would normally be routed to the first agent.
Once that agent accepts the interaction, their availability timer resets. This creates a continuous rotation across the team.
Why is Longest Available Agent routing used?
Longest Available Agent routing provides a simple way to distribute interactions across a team.
It can help contact centres achieve:
Fairer work distribution: Interactions are offered according to waiting time rather than personal preference.
Reduced idle time: Agents who have been waiting longest are prioritised for new work.
Consistent routing: The same rule is applied automatically across the team.
Improved queue movement: Available agents are connected with waiting customers more quickly.
Better resource use: Work is spread across the available workforce rather than repeatedly sent to the same people.
What are the limitations?
Longest Available Agent routing does not always send the customer to the agent most likely to achieve the best outcome.
It may not account for:
- Previous customer interactions
- Agent performance
- Customer preferences
- Complexity of the query
- Agent personality or communication style
- Likelihood of first-contact resolution
For example, the longest waiting agent may be qualified to handle a complaint but may not be the strongest person for that particular situation.
More advanced routing approaches may combine availability with skills, customer history, intent and predicted outcomes.
Conclusion
Longest Available Agent routing distributes work to the eligible agent who has been waiting longest for a new interaction.
It offers a simple and transparent way to reduce idle time and support fairer workloads. However, contact centres with complex customer needs may benefit from combining it with skills, priority and behavioural routing.
Request a demo to explore how Cirrus can help you improve routing, workforce utilisation and customer outcomes.
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