Before you start
Before creating the rule:
- Make sure your plan includes Advanced Rules.
- Decide exactly when the rule should apply.
- Write the rule in one simple sentence.
Example: “Orders shipping outside the UK must be at least £200.”
If your rule has more than one condition, decide whether ALL conditions must match or whether ANY one condition is enough. See match type.
Steps
1. Install Nex Validator
If Nex Validator is not installed yet, install it from the Shopify App Store and approve the required permissions. If it is already installed, skip to the next step.
2. Create an Advanced Rule. From the dashboard, go to Advanced Rules and click Create Rule. Enter a clear title for the rule.
3. Add your Conditions. Choose the condition that decides when the rule should apply. Select the Condition, choose the Operator, and enter the Value. To add another condition, click Add new condition.
4. Set the Match type. Choose how your conditions should work together. Select All conditions must match when every condition needs to be true. Select Any condition must match when at least one condition can be true.
5. Set the Action. Choose what should happen when the conditions match. Select the required Action and enter the Default Message that customers should see when the rule blocks their order.
6. Add translations if needed. If your store uses multiple languages, enable Multilingual Messages, select a language, and enter the translated message. If you do not need translations, skip this step.
7. Activate and save the rule. Set the rule Status to Active and save your changes. The Advanced Rule will now apply when its conditions are matched.
Verify it worked
| Test | Expected result |
|---|---|
| Conditions match, but the order breaks the limit | Order is blocked and the message appears |
| Conditions match and the order follows the limit | Customer can continue |
| Conditions do not match | Advanced Rule does not apply |
| Test the exact limit value | It behaves the way you intended |
Important: Always test at least one order where the conditions do NOT match. This confirms the rule is not applying too broadly.
Keep them readable
Give every Advanced Rule a clear title that explains what it does.
- Good: “Minimum £200 outside UK”
- Avoid: “Advanced rule 3”
If a temporary rule is no longer needed, disable it so your rule list stays easy to manage. Active rules also count toward Shopify’s validation limit — see limits.