How should we send Documents to Denim?

Last updated: July 1, 2026

TMS integrators are expected to provide, at a minimum, the following documents when submitting jobs for funding.

Document	type	subtype	Notes
Shipper Rate Confirmation	billing_paperwork	purchase_order	Typically required.
Proof of Delivery	billing_paperwork	proof_of_work
Carrier Invoice	supporting_paperwork	invoice	Not needed when there are no contractor payables.

Document Types

The table below provides an exhaustive list of all the document types and subtypes associated with the Axle API.

Type	Description
supporting_paperwork	Supporting Paperwork - These are usually carrier docs (such as the carrier rate confirmation and carrier invoice) and they do NOT get sent to the debtor.
billing_paperwork	Billing Paperwork - This includes POD, shipper rate con. They do get sent to the debtor as a part of our invoice

Document Subtypes

The table below provides an exhaustive list of all the document subtypes associated with the Axle API.

Subtype	Description
purchase_order	Rate confirmation, i.e proof that someone agreed to the prices and work.
invoice	Invoice from the carrier or to the shipper (depending on billing or supporting)
proof_of_work	Usually proof of delivery, signed BOL, Lumper receipts, etc...