Multi-Source Inventory

Aggregate stock from multiple sources (Shopify, Ingram Micro, TD SYNNEX) for accurate availability.

The Multi-Source Inventory feature aggregates stock from multiple sources—your Shopify store, Ingram Micro, and TD SYNNEX—to display accurate, real-time availability and reduce out-of-stock situations.

What It Does

Instead of only showing your Shopify inventory, the widget:

  • Checks stock across multiple vendors
  • Aggregates total available quantity
  • Displays combined availability
  • Respects configured minimum thresholds
  • Updates in real-time

Benefits

For Your Customers

  • More products available - See true availability across all sources
  • Accurate stock levels - Real-time data from vendors
  • Confidence to order - Know products are truly in stock
  • Faster fulfillment - Orders filled from nearest source

For Your Business

  • Reduce out-of-stock - Leverage distributor inventory
  • Dropship capability - Sell products without stocking
  • Lower inventory costs - Carry less on-hand inventory
  • Expand catalog - Offer more products without warehousing
  • Automated sourcing - System selects best fulfillment source

Supported Sources

Shopify Store Inventory

Your on-hand inventory in Shopify:

  • Real-time from Shopify Admin API
  • All locations aggregated
  • Available to promise (ATP)
  • Reserve levels respected

Ingram Micro

Leading technology distributor:

  • Real-time availability API
  • Part number matching
  • Configurable minimum threshold
  • Price and lead time data

TD SYNNEX

Global IT distributor:

  • Real-time stock API
  • SKU matching
  • Minimum stock levels
  • Fulfillment options

Requirements

  • Feature purchase: integration_shopify_vendor_integrations
  • API credentials: Vendor API keys configured in Weevio Cloud
  • SKU matching: Product SKUs match vendor part numbers
  • Premium shipping: Recommended for full feature set

Configuration

Backend Setup

In Weevio Cloud:

  1. Navigate to Integrations > Shopify
  2. Scroll to Vendor Integrations
  3. Configure credentials for each vendor

Ingram Micro:

  • Client ID
  • Client Secret
  • Customer Number

TD SYNNEX:

  • API Key
  • API Secret
  • Account Number

Inventory Thresholds

Configure minimum inventory levels per source:

// In Weevio Cloud team settings
{
  SHOPIFY_INVENTORY_MINIMUM: "1",
  INGRAM_INVENTORY_MINIMUM: "10",
  TDSYNNEX_INVENTORY_MINIMUM: "5"
}

Why thresholds?

  • Prevents showing unreliable low stock
  • Accounts for order processing time
  • Reduces fulfillment errors
  • Improves customer experience

SKU Matching

For multi-source inventory to work:

  1. Product SKUs in Shopify must match vendor part numbers exactly
  2. Case-sensitive matching
  3. No extra spaces or characters
  4. Example: ABC-123-XYZ must match exactly

Best practice: Use manufacturer part numbers as Shopify SKUs.

Customer Experience

Stock Display

Single Source:

✓ 5 available
Standard delivery in 3-5 business days

Multiple Sources:

✓ 45 available across multiple sources
  - 10 in our warehouse
  - 25 from Ingram Micro
  - 10 from TD SYNNEX

Standard delivery in 3-5 business days

Availability Messaging

High Stock:

✓ In Stock (45 available)

Low Stock:

⚠ Limited availability (8 available)

Single Unit:

⚠ Only 1 available - order soon!

Out of Stock:

✗ Out of Stock
[Similar in-stock options available]

How It Works

Inventory Aggregation Flow

Customer views product
         │
         ▼
┌────────────────────────────────────┐
│ Widget requests inventory data     │
└────────────────────────────────────┘
         │
         ├─► Shopify Inventory API
         ├─► Ingram Micro API (if configured)
         └─► TD SYNNEX API (if configured)
         │
         ▼
┌────────────────────────────────────┐
│ Backend aggregates all sources:    │
│ - Shopify: 10 units                │
│ - Ingram: 25 units (≥10 threshold) │
│ - SYNNEX: 10 units (≥5 threshold)  │
│ Total: 45 units                    │
└────────────────────────────────────┘
         │
         ▼
┌────────────────────────────────────┐
│ Display: "45 available across      │
│ multiple sources"                  │
└────────────────────────────────────┘

Threshold Logic

Example with Ingram minimum = 10:

  • Ingram has 5 units: NOT shown (below threshold)
  • Ingram has 15 units: Shown (above threshold)
  • Ingram has 0 units: NOT shown (unavailable)

This prevents showing vendor stock that may not be reliable.

Order Fulfillment

Automatic Source Selection

When customer orders, system selects source based on:

  1. Availability - In stock at source
  2. Priority - Shopify first, then vendors
  3. Cost - Lowest fulfillment cost
  4. Speed - Fastest delivery option

Dropship Workflow

For vendor-fulfilled orders:

  1. Customer places order in Shopify
  2. Order syncs to PIMS
  3. PIMS creates vendor purchase order
  4. Vendor ships directly to customer
  5. Tracking updated in Shopify

Split Fulfillment

If order requires multiple sources:

  • System splits order automatically
  • Customer receives one tracking per shipment
  • Shopify shows multiple fulfillments
  • Total cost calculated correctly

Use Cases

Electronics Retailer

Challenge: Can't stock all 10,000 SKUs in warehouse.

Solution: Stock top sellers, dropship rest from distributors.

Result: Offer full catalog without inventory investment.

B2B Wholesale

Challenge: Business customers need guaranteed availability.

Solution: Show combined Shopify + vendor inventory.

Result: Fewer backorders, higher customer satisfaction.

Seasonal Business

Challenge: Inventory needs fluctuate dramatically.

Solution: Carry minimal stock, leverage vendor inventory for peaks.

Result: Lower holding costs, meet demand spikes.

Vendor Management

API Credential Security

  • Encrypted storage in Weevio Cloud
  • Never exposed to frontend
  • Rotatable without downtime
  • Access logging for compliance

Monitoring

Track vendor performance:

  • API response times
  • Stock accuracy
  • Fulfillment speed
  • Error rates

Available in Weevio Cloud dashboard.

Vendor Selection

Ingram Micro:

  • Best for: IT hardware, consumer electronics
  • Coverage: North America, Europe
  • Inventory: 200,000+ SKUs

TD SYNNEX:

  • Best for: IT products, AV equipment
  • Coverage: Global
  • Inventory: 150,000+ SKUs

Performance

API Caching

  • Cache duration: 30 seconds
  • Reason: Balance freshness and speed
  • Override: Can be adjusted per use case

Load Times

Typical performance:

  • Shopify only: 100-200ms
  • + Ingram: +150ms
  • + TD SYNNEX: +150ms
  • Total with caching: 200-500ms

Rate Limiting

To protect vendor APIs:

  • Requests debounced by 2.5 seconds
  • AbortController cancels stale requests
  • Request sequencing prevents race conditions
  • Retry logic for temporary failures

Troubleshooting

Vendor Inventory Not Showing

Check:

  • API credentials configured correctly
  • Product SKU matches vendor part number exactly
  • Vendor has stock above minimum threshold
  • API connection is active

Incorrect Stock Levels

Check:

  • SKU matching is case-sensitive
  • No spaces in SKU
  • Vendor API responding correctly
  • Cache hasn't expired (30 seconds)

Slow Loading

Check:

  • Vendor API response times
  • Network connectivity
  • Cache duration settings
  • Too many concurrent requests

Stock Shows But Order Fails

Check:

  • Stock dropped between view and order
  • Vendor minimum order quantities
  • Account restrictions
  • API errors in logs

See the Troubleshooting Guide for more solutions.

Best Practices

SKU Management

  • Use manufacturer part numbers - Ensures vendor matching
  • Consistent formatting - Same format across all sources
  • Regular audits - Verify SKU alignment
  • Documentation - Maintain SKU mapping records

Threshold Settings

  • Test different values - Find optimal per vendor
  • Monitor accuracy - Adjust based on fulfillment success
  • Seasonal adjustment - Higher thresholds during peaks
  • Vendor communication - Understand their reliability

Fulfillment Strategy

  • Clear priority order - Shopify first, then vendors
  • Cost optimization - Factor shipping costs
  • Speed requirements - Balance cost vs. delivery time
  • Customer communication - Set expectations for dropship

Combining with Other Features

Works seamlessly with:

  • Shipping Estimates - Shows delivery from best source
  • In-Stock Recommendations - Considers all sources
  • B2B Pricing - Vendor costs inform pricing
  • Cross-Sell - Accurate inventory for suggestions

Next Steps

Need Help?

Questions about multi-source inventory?

Need Help?

For assistance, please send a message to our Support page.