PB Presort


The PB Shipping APIs integrate with the PB Presort service through the API operations listed on this page. PB Presort provides presort services for domestic shipment of flats and letters. Presort labels are post-paid labels. No postage is charged at the time of print.

This page describes how to onboard a merchant to use PB Presort; lists the API operations to use when shipping with PB Presort; and lists the supported services, special services, parcel types, and label options.

Onboard a Merchant to Print PB Presort Labels

A merchant must be enrolled with a PB Presort facility to use the service. To enroll a merchant, contact your Pitney Bowes account representative. Pitney Bowes will provide the following information for the merchant:

Mailer ID The Mailer ID (MID) identifies the merchant as validated for PB Presort. When creating a label, specify the MID value in the X-PB-Integrator-CarrierId header.
Job number

This identifies the agreement between the merchant and PB Presort for a committed volume of parcels and specific class of service at an agreed-upon rate. A merchant can be assigned multiple job numbers.

When creating a label, specify the job number in the X-PB-ShipmentGroupId header.

Date and time of pickup The regularly scheduled time for parcel pickup.
Rate charts The rates for PB Presort shipments. To determine a rate for a PB Presort shipment, use the rate charts. Do not use the Rates API.

API Operations for Shipping with PB Presort


To rate a PB Presort shipment, use the rate charts. Do not use the Rates API.

Method Endpoint

Create PB Presort Label



Reprint Label



Retry Label



Create a PB Presort Pickup Slip



Get Tracking Information



Accounts APIs


See the Accounts APIs table on the Merchant Accounts page.

PB Presort Services and Parcels

PB Presort supports the following combinations of service and parcel type:

Service ID Service
Supported Parcel Type
Maximum Parcel Dimensions
Weight Rules
BPM Bound Printed Matter PKG (Package)

LGENV (Large Envelope)
Length: 27.0 in
Width: 17.0 in
Height: 17.0 in
Length: 15.0 in
Width: 0.75 in
Height: 12.0 in
Max Weight: 240.0 oz
Min Weight: 0.01 oz

Max Weight: 240.0 oz
Min Weight: 0.01 oz
STANDARD Standard Mail LGENV (Large Envelope) Length: 15.0 in
Width: 0.75 in
Height: 12.0 in
Weight Rules
Max Weight: 16.0 oz
Min Weight: 0.01 oz

PB Presort Special Service

The following special service is supported for PB Presort.

Important: Do not include a special service unless you intend to apply it.

ID Special Service Services Supporting the Special Service Input Parameter
DelCon Delivery Confirmation STANDARD

Input parameters are not required for DelCon. To use DelCon, add the following to the rates.specialServices array:

{ "specialServiceId": "DelCon" }

PB Presort Parcels and Labels

Please read the following considerations before printing labels:

  • The label size, as specified in the documents.size field, uses an upper-case X. Using a lower-case x will result in an error.
  • If you choose to retrieve the label through a URL, the URL is available for 24 hours after the shipment is created.
  • By default, the APIs print ZPL2 labels using the Unicode character set. If you have an older printer that does not support Unicode, see this troubleshooting topic.
  • Advise shippers on correct label placement. Please see What is the correct placement for a shipping label?

The following table describes the options for each parcel type and label size.

Parcel Type ID

Parcel Type

Supported Services

Supported Label Size

Label Format / Content Type

Label Barcode

LGENV Large Envelope (Flat) BPM or STANDARD DOC_6X4 PDF / URL