SLA (Service Level Agreement)

A service level agreement (SLA) in parcel shipping defines the committed delivery standard — typically a transit time (e.g., next-day) and a minimum on-time percentage — that a carrier guarantees to a shipper. SLAs are the contractual backbone of shipper-carrier relationships and the basis for service credits when performance falls short. LMS Core's published SLA commits to next-day delivery with a 99% on-time rate.