---
title: How do I set up and manage Smart eRUC?
description: Steps to turn on Smart eRUC, set RUC units and repurchase threshold, and what preconditions must be met before automatic purchasing starts.
---
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1. [Argus Tracking Customer Knowledge Base](https://help.argustracking.co.nz/knowledge-base?hsLang=en-au)
2. [Compliance and RUC](https://help.argustracking.co.nz/knowledge-base/compliance-and-ruc?hsLang=en-au)
3. [Smart eRUC and Smart Hubo](https://help.argustracking.co.nz/knowledge-base/compliance-and-ruc?hsLang=en-au#smart-eruc-and-smart-hubo)
# How do I set up and manage Smart eRUC?
## Turn Smart eRUC on from Fleet Management in the Argus Dashboard, then set your RUC units to buy and repurchase threshold — changes save automatically.
You turn on Smart eRUC from Fleet Management in the Argus Dashboard, then set your RUC units and repurchase threshold — automatic purchasing starts once your preconditions are met.
**Also known as / customers also ask:** set up Smart eRUC, manage Smart eRUC, turn on automatic RUC purchasing, Smart eRUC settings, RUC units, repurchase threshold
## What you need before you start
- Your Smart eRUC partner direct debit form completed and returned, in addition to your Argus direct debit form — automated purchasing does not start until this is in place.
- A mechanical hubodometer fitted, with NZTA's records showing your vehicle has switched to it rather than another eRUC provider.
- For RUC-liable vehicles over 3,500 kg gross vehicle mass (GVM): a hubodometer that's set up and calibrated in Argus. Without this, the vehicle is excluded from automated purchasing and you'll get a reminder email instead — see [Smart Hubo](https://help.argustracking.co.nz/knowledge-base/what-is-smart-hubo?hsLang=en-au).
## How do I set up Smart eRUC?
1. Sign in to the Argus Dashboard.
2. In the left-hand menu, select **Fleet Management**.
3. Select **Smart eRUC**.
4. Select the switch so it turns blue, turning Smart eRUC on for that asset.
## How do I set my RUC units and repurchase threshold?
Once Smart eRUC is on, you can enter a custom value for **RUC units to buy** — remembering that 1 RUC unit equals 1,000 km — and a custom value for **purchase RUCs X km prior to expiry**, which controls how close to running out your balance gets before a new purchase is triggered automatically. There's no separate save step — any change you make is applied automatically.
## How do I know it worked?
After you turn Smart eRUC on, your next RUC licence is typically purchased and applied to the in-vehicle display overnight. Keep any existing paper RUC label in place until the updated licence is showing on the myRUC screen, then remove it.
## What if it doesn't work?
**Purchasing hasn't started:** check both direct debit forms — your Argus one and the Smart eRUC partner one — have been returned; purchasing is held until both are in place.
**A vehicle over 3,500 kg GVM isn't purchasing automatically:** check its hubodometer is set up and calibrated in Argus — without this it's excluded from automatic purchasing.
**A purchase didn't go through and you're not sure why:** Argus runs safety checks before completing a purchase to guard against mismatched data; check your Compliance page for a reminder email rather than assuming the purchase failed silently, or see [why an automatic RUC purchase might not go through](https://help.argustracking.co.nz/knowledge-base/why-didnt-my-automatic-ruc-purchase-go-through?hsLang=en-au).
This article doesn't cover *what Smart eRUC is or who it's for* — see [Smart eRUC](https://help.argustracking.co.nz/knowledge-base/what-is-smart-eruc?hsLang=en-au). If your setup still isn't behaving as expected, [contact Argus support](https://support.argustracking.com/new-request).
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