How do you troubleshoot a service invocation failure using OFBiz logs?

Start with the log files under runtime/logs (commonly ofbiz.log and the rolling console logs), where the Service Engine logs the service name, the exception, and often the full parameter map at the point of failure.

1. Confirm the service name and check its definition in the relevant *Services.xml - a validation error usually means a required attribute is missing or mistyped.
2. Look for a GenericServiceException or ServiceValidationException stack trace, which points at exactly which parameter or permission check failed.
3. If the implementation itself threw an error, trace it back to the Mini-language, Groovy, or Java code referenced by that service definition.
4. Use WebTools' "Run Service" utility to re-invoke the same service manually with controlled parameters, isolating whether the failure is data-specific or systemic.

Temporarily raising the relevant logger to DEBUG is often the fastest way to see the exact parameter map the engine received versus what the service definition expected.