hopper_level

What Hopper Level Does

The target number of leads maintained in the dialing hopper (queue) at any given time. VICIdial continuously refills the hopper from your lead lists to maintain this count. Setting too low causes the dialer to pause while hopper is refilled; too high consumes memory and may lock in stale leads.

Recommended Configuration

| Center Size | Recommended Value | Notes |

| --- | --- | --- |

| 10–25 Agents | 20 to 200 depending on agent count and lead volume | Start conservative, monitor for 48 hours before adjusting |

| 25–100 Agents | 20 to 200 depending on agent count and lead volume | Scale gradually — larger operations amplify effects of misconfiguration |

| 100–500 Agents | 20 to 200 depending on agent count and lead volume | Consult ViciStack optimization team for enterprise-scale tuning |

How to Change This Setting

• Navigate to Admin > Campaigns

• Select campaign

• Find Hopper Level field

• Enter target hopper size (agents * dial_level * 2-3x buffer is a good formula)

• For 20 agents at dial level 2: 80-120 is appropriate

• Submit

Common Problems

Value too low (under 10) causes frequent hopper-empty pauses in dialing

Value too high locks leads in hopper that could be recycled sooner

Hopper not refilling despite leads in list indicates a dial_status_filter mismatch

ViciStack Module

ViciStack’s List Management & Optimization module automatically monitors and optimizes hopper_level based on real-time performance data from your operation. Instead of manual tuning, ViciStack continuously analyzes call outcomes, agent performance, and contact rates to recommend and implement optimal values — often catching configuration drift before it affects your numbers.