When a customer is providing labels to OSM for validation during onboarding, those MUST be in ZPL format and cannot ever be converted to or from any other format, otherwise they will fail. OSM Worldwide recommends Zebra Models S4M and GK420d.
OSM Supports a 4x6 label size.
Advanced Options & Returns
Return label types are supported by OSM. OSM supports a separate service level for returns. Returns are discounted from standard ground service levels. There are no unique rules required to rate and purchase a return label.
EasyPost will return 1 cent rates by default once you set up your OSM account with us. This means that although you will see a 1 cent rate on your shipment, OSM will charge you the appropriate amount for postage via their billing system.
An OSM Worldwide rep can provide you with a rate card that will show you what rates you can expect to pay OSM given shipment parameters (package size/weight, location, etc.). EasyPost is not automatically privy to these rates, so when you first create an OSM account you will need to obtain your custom rate card from OSM. Once you have obtained your rate card, contact firstname.lastname@example.org for help installing your rate card.
Manifesting is supported AND required with OSM. All label purchases must be manifested. OSM archives shipments that were purchased over 120 days ago, and those shipment labels can no longer be manifested. Labels purchased up to 119 days ago can be manifested, but this is not recommended. Users should know that it is best practice to manifest their shipment labels within 10 days of purchase.
OSM supports pickups at the customer's facility. OSM can support pickups for any customer based on their agreement. Regular pickups can be arranged with the OSM team during the registration process; however, cannot be scheduled through the EasyPost API.
Our Carrier Metadata endpoint can programatically return information about OSM including service levels, predefined packages, supported features, and shipment options.
Use this information to quickly integrate with OSM or make educated decisions about your carrier mix. You can also use the Carrier Metadata endpoint to retrieve information about all the carriers on the EasyPost platform.