Immediate answer: Build one reference month and force every proposal through it. Use the same orders, units per order, pallet footprint, inbound pattern, package profile, channels and special work.
Step 1: Freeze your assumptions
- Monthly orders and peak month
- Average items per order
- Active SKUs
- Average pallets or other storage footprint
- Inbound shipments
- Package sizes and weights
- Channel mix
- Returns, kitting and special projects
Step 2: Rebuild the monthly invoice
Map every line item into receiving, storage, fulfillment labor, packaging, account/technology, returns/special projects and shipping. If a provider uses a different billing unit, translate it into your reference month.
Step 3: Compare non-price operating terms
Document the communication path, inventory visibility, integration responsibilities, implementation steps, exceptions process and how changes are approved. Cheap fulfillment that creates founder-management work can be expensive in a different way.
Step 4: Ask what would make the quote change
Volume, inventory age, carton profile, packaging, peak periods and project work can all change the economics. The best comparison includes the assumptions that could break the model.
Frequently asked questions
What information should I send every 3PL?
Send the same order history, SKU list, inventory footprint, package profile, channel mix and special requirements so proposals are based on comparable facts.
Should I send my current 3PL invoice?
It can help if you are comfortable sharing it, but a clean operating profile is more important. Remove information you do not want to disclose.
What is the biggest quote-comparison mistake?
Comparing one headline fee instead of the projected total invoice and the operating terms behind it.
See whether your fulfillment profile fits the providers we work with.
The assessment focuses on the operating facts that matter: order volume, storage footprint, SKU count, product handling, channels and timing.