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"Error: Invalid Package Reference Value" message when shipping with UPS API in SendPro Enterprise

The message "Error: Invalid Package Reference Value" occurs because the carrier UPS API only allows 35 characters in the Content Description, Reference One, and Shipper Reference fields.
Products affected: SendPro® Enterprise

Issue

When shipping with carrier UPS API, the message "Error: Invalid Package Reference Value" appears.

Cause

The carrier UPS API only allows 35 characters in the Content Description, Reference One, and Shipper Reference fields. This is a carrier limitation.

Resolution

Reduce the amount of data in the Content Description, Reference One, and Shipper Reference fields to 35 characters or less.

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UPDATED: March 11, 2022