"Tracking number must start with 948" when shipping USPS ERR with pre-printed labels in SendSuite Live

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Products affected: SendSuite® Live


When attempting to process a USPS Certified ERR letter with a pre-printed label, the error "Tracking number must start with 948" is displayed.


The incorrect pre-printed labels are being used. The system is configured to use IMpb Compliant barcode labels.


UPDATED: June 03, 2021