---
title: "Stackable Promotions"
description: "Learn how to combine multiple promotions to offer additional benefits to your customers."
keywords: ["promotions", "stackable", "combine", "multiple"]
lastUpdated: "2025-01-26"
---

# Stackable Promotions

Stackable promotions allow you to **combine multiple offers** in the same sale, offering additional benefits to your customers and maximizing the value of each purchase.

## What are Stackable Promotions?

A stackable promotion is one that can be applied **together with other promotions** in the same sale, as long as all are marked as "stackable".

When a promotion **is not stackable**, it has exclusive priority and can block the application of other promotions.

## How It Works

### Stackable Promotions

If two or more promotions are marked as **"Stackable"**:

1. System evaluates all active promotions
2. Applies all that meet their conditions
3. Discounts are added or combined as appropriate

### Non-Stackable Promotions

If a promotion **is not stackable**:

1. It's evaluated first according to its priority
2. If it applies, it can block other promotions of lower priority
3. Only the highest priority promotion that meets conditions is applied

## Example: Stackable Promotions

### Scenario

You have two promotions:

**Promotion A: "20% OFF on Clothing"**
- Type: Percentage Discount
- Target: Category "Clothing"
- Priority: 10
- **Stackable: Yes**

**Promotion B: "Discount on 2nd product"**
- Type: Nth Discount
- N: 2
- Discount: 15%
- Priority: 5
- **Stackable: Yes**

### Result

A customer buys 2 t-shirts at $1000 each:

1. **Promotion A** applies: 20% OFF = $800 per t-shirt
2. **Promotion B** applies: 15% OFF on 2nd t-shirt = $680
3. **Total:** $800 + $680 = $1480 (savings of $520)

## Example: Non-Stackable Promotions

### Scenario

You have two promotions:

**Promotion A: "2x1 on Beverages"**
- Type: Buy X Get Y
- Priority: 20
- **Stackable: No**

**Promotion B: "10% OFF on Beverages"**
- Type: Percentage Discount
- Priority: 10
- **Stackable: Yes**

### Result

A customer buys 2 beverages:

1. **Promotion A** has higher priority (20 > 10)
2. **Promotion A** is not stackable, so it blocks other promotions
3. Only Promotion A (2x1) is applied
4. Promotion B is not applied

## Best Practices

### When to Use Stackable Promotions

✅ **Use stackable when:**
- You want to offer multiple benefits
- Promotions are complementary (don't compete)
- You want to maximize perceived value by customer
- You're in liquidation season

### When NOT to Use Stackable Promotions

❌ **Don't use stackable when:**
- Promotions are mutually exclusive
- You want to strictly control margins
- One promotion is more important than others
- You want to avoid excessive discounts

## Stacking Strategies

### Strategy 1: Category Stacking

Create stackable promotions for different categories:

- 20% OFF on Clothing (stackable)
- 15% OFF on Footwear (stackable)
- 10% OFF on Accessories (stackable)

**Result:** Customer can get discounts on multiple categories.

### Strategy 2: Type Stacking

Combine different promotion types:

- Percentage Discount (stackable)
- Nth Discount (stackable)
- Buy X Get Y (stackable)

**Result:** Customer can get multiple types of benefits.

### Strategy 3: Controlled Stacking

Use priorities to control what applies first:

- Main Promotion (priority 20, not stackable)
- Secondary Promotion (priority 10, stackable)
- Tertiary Promotion (priority 5, stackable)

**Result:** Main promotion always applies, and secondary ones only if it doesn't block.

## Priority Configuration

### Numbering System

Use spaced numbers to facilitate adjustments:

```
VIP Promotion: 30
Standard Promotion: 20
Basic Promotion: 10
General Promotion: 5
```

### Priority Rules

1. **Higher number = Higher priority**
2. Non-stackable promotions block lower priority ones
3. Stackable promotions are evaluated independently

## Promotion Testing

Before activating stackable promotions in production:

1. **Create test sales** with different combinations
2. **Verify totals** to ensure discounts are correct
3. **Review margins** to confirm they're sustainable
4. **Test edge cases** (multiple products, different categories)

## Monitoring

After activating stackable promotions:

- **Review sales reports** to see which combinations are used most
- **Analyze impact** on margins and volumes
- **Adjust priorities** according to results
- **Deactivate promotions** that don't generate expected results

## Limitations

### Technical Considerations

- Promotions are evaluated in priority order
- Promotion engine is deterministic (same result always)
- Discounts are applied as new lines in the sale

### Business Considerations

- Multiple discounts can significantly reduce margins
- Customers may abuse extreme combinations
- Some combinations may not make commercial sense

## Next Steps

- [Promotion Types](/docs/promotions/types) - Review available types
- [Creating and Configuring Promotions](/docs/promotions/creating) - Learn to configure them