SSCC Label Vs. Pallet ID: Which Identifier Should Your Warehouse Use?

SSCC Label A logistics label carrying an SSCC, typically encoded in a GS1 barcode, to uniquely identify a shipping unit.

Warehouses often use more than one identifier for a pallet: a local pallet ID used by the WMS and an external identifier such as an SSCC. The SSCC Label is intended as a globally unique, trading-partner-friendly identifier, while a pallet ID may be a short, internal code. Understanding the strengths and limits of each helps operators choose the right approach for shipping, tracking, and compliance.

Fundamental Differences

Two common identifiers appear on unit loads. They serve different purposes and are not mutually exclusive.

• SSCC Label: A globally unique 18-digit code encoded with AI (00) in a GS1-128 barcode; designed for external visibility, ASNs, and cross-company tracking.
• Pallet ID: An internal identifier assigned by WMS or ERP for operational tasks like putaway, inventory audits, and internal routing; format varies by company.

When To Use SSCC Labels

SSCC Labels are the correct choice when shipments must be referenced between organizations or when regulatory/partner requirements call for standardized identifiers.

• ASN and EDI exchange: Major retailers and many manufacturers require SSCCs in ASNs so receiving systems can match inbound pallets to expected shipments.
• 3PL operations: When the 3PL handles client freight, SSCCs prevent client-level numbering collisions and create auditable handoffs.
• Transport visibility: Carriers scan SSCCs to share pickup and delivery events with shippers and consignees.

When A Pallet ID Is Enough

For purely internal workflows where pallets never cross company boundaries, a pallet ID that’s short and aligned with the WMS can be sufficient and faster to generate.

• Internal putaway and picks: Short IDs printed on temporary labels work for single-site handling with no external ASNs.
• Short-lived loads: If a consolidated pallet is broken and consumed within a day without shipping, a temporary pallet ID may be more efficient.

Combining Both Identifiers

Most mature operations maintain both identifiers and map them in the WMS. Typical pattern:

• WMS Pallet ID: Used for internal location and transaction records.
• SSCC Label: Printed and applied before shipping; included in ASN and carrier documents for external tracking.
• Mapping: WMS stores SSCC↔PalletID association so inbound scans or returns can reconcile records quickly.

Practical Considerations And Risks

Operators should avoid common mistakes that break the benefits of SSCC Labels:

• Duplicate SSCCs: Never reuse SSCCs within the scope defined by trading partners; collisions create reconciliation headaches and potential delivery errors.
• Missing ASN mapping: If SSCCs are printed but not transmitted to the buyer via ASN, the receiving site may reject pallets or require manual processing.
• Poor label quality: Damaged or low-contrast barcodes reduce scan rates and force manual entry of SSCCs or pallet IDs.

Operational Checklist For Choosing A Strategy

Use this checklist to decide whether to use SSCC labels, pallet IDs, or both:

• Trade partners require SSCC? If yes, implement SSCC Labels and include them in ASNs.
• Will units leave your network? If they will cross company boundaries, prefer SSCC to ensure uniqueness.
• Does your WMS support mapping? Ensure the WMS can store and report both pallet ID and SSCC for reconciliation and returns.

In short, the SSCC Label is the appropriate external identifier for shipments that cross organizational boundaries and must be referenced by partners and carriers. Pallet IDs remain useful internally; combining both and maintaining a clean mapping in your WMS gives the best operational flexibility.