# Contact Us

## Technical Questions

For technical questions on [available carriers](/docs/shipping/carriers/carrier-catalog/), please contact Client Support at [ClientSupportTechServices@pb.com](mailto:ClientSupportTechServices@pb.com).

If you have questions about other Pitney Bowes products, please [visit Pitney Bowes Support](https://www.pitneybowes.com/us/support.html).
Provide the following information, as applicable:

- Business name
- Detailed description of your question or issue
- Exact text of any error messages
- The request and response, including headers
- Any log-based metrics, such as timestamps for requests and responses
- Any affected transaction IDs
- Any additional information


## USPS Postage Account Questions

For questions on USPS postage accounts, Open Support case here: https://www.pitneybowes.com/us/support/contact-us.html or call +1 844-256-6444.
Provide the following information:

- Detailed description of the question or issue.
- Account number, if applicable.


## Sales Questions

For questions on sales, please contact [ShippingAPIBusinessDevelopment@pb.com](mailto:ShippingAPIBusinessDevelopment@pb.com).