Understand gateways and MIDs
Review payment connection environments, health, and setup status.
A gateway is a payment connection. A MID is the merchant account identifier used by a processor. Their available settings and health depend on the connection and environment. Dry Run is provisioned for testing in a new workspace; it is not a live payment connection.
Review your connections
- Open Payments → Gateways & MIDs.
- Check each connection's name, environment, setup status, and health shown on the page.
- Open the connection detail before changing it. Confirm that the selected store and environment match your intended use.
- If you need another live connection, use the available setup path or ask support for the processor-specific prerequisites.

Use Dry Run to explore router behavior without charging a shopper. Before a live launch, confirm a working live gateway, the correct merchant account, and a router that uses it. A green preview in Dry Run does not establish live processor readiness.