When an ETA Is Not a Promise: A Retailer Playbook for Confidence-Aware Delivery Messaging
WISMOlabs analyzed anonymized operational data from more than 2.5 million shipments across 140 retailer entities to examine carrier ETA availability and accuracy. The study explains why an ETA is evidence, not automatically a retailer promise, and provides transparent methodology, benchmarks, limitations, and a practical framework for confidence-aware post-purchase messaging for ecommerce retailers.