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How do I use an Access Key?

  • To gain access to UPS Application Programming Interfaces (APIs), the Access Key must accompany every request sent to the UPS Developer Kit server. If the Access Key is valid for the requested API (and the User ID/Password is correct), the requested service will be processed. If not, the service response containing the corresponding error code and message will be returned. Additional information on using an Access Key can be found within the documentation for each API.