If you're having issues connecting your carrier or postage provider account to ShipStation, follow the steps below:
Review Support Resources
Our Integration Help Guide includes a page for each of our carrier connections, including detailed steps on how to connect the account to ShipStation and how to find any necessary information. We also include connection-specific troubleshooting tips and links to partner resources that can help clear up any other confusion you may run into when connecting the carrier.
Try alternate addresses
Some carriers require the same Ship From address in ShipStation as is listed in your carrier account. If the Ship From address you're using results in an error that states the address is incorrect, try using alternate addresses that could be used in the carrier account. For example, if you moved recently, try using the old address in case the carrier's database has not been updated yet.
Contact the ShipStation User Success team
If the above advice does not help you resolve the connection issue, contact ShipStation's User Success team and we'll be happy to review the error and discuss possible solutions. See our page on Contacting ShipStation Support for additional information.