Simulator and Audit Trace

Flex Shipping includes tools for validation and post-check transparency.

Simulator

Run method calculation against concrete quotes in admin and inspect returned methods and amounts before changing live behavior.

Audit trace

Audit entries keep method-level decision context for each calculation (for example conflict strategy, package metrics, and payload depth) plus the calculated amount. A separate selected rate_id is not persisted.

Operational benefit

Support and QA teams can reproduce and explain shipping outcomes faster, which reduces troubleshooting cycles.