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# Error message reference for Mediation

## Docs

- [System errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/system-errors-mediation.md): This reference provides details on various system errors, their descriptions, and possible remedies.
- [Data & Operator errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/data-operator-errors-mediation.md): This reference provides comprehensive details on data and operator errors, including error codes, descriptions, and potential remedies.
- [External Service errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/external-service-errors-mediation.md): This reference provides comprehensive details on external service errors, including error codes, descriptions, and potential remedies for issues such as rule engine execution, subscription lookup, invoice creation, and more.
- [Dashboard Summary errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/dashboard-summary-errors-mediation.md): This reference provides a summary of dashboard error codes, their messages, and suggested remedies for resolution.
- [Authentication & Authorization errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/authentication-authorization-errors-mediation.md): This reference provides a summary of authentication and authorization error codes, their messages, and suggested remedies for resolution.
- [Meter Lifecycle errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/meter-lifecycle-errors-mediation.md): This reference provides a summary of meter lifecycle error codes, their messages, and suggested remedies for resolution.
- [Event Definition errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/event-definition-errors-mediation.md): This reference provides a summary of event definition error codes, their messages, and suggested remedies for resolution.
- [Meter Import & Configuration errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/meter-import-config-errors-mediation.md): This reference provides a comprehensive overview of meter import and configuration error codes, detailing their messages and offering suggested remedies for resolution.
- [Script errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/script-errors-mediation.md): This reference provides details on script errors, including error codes, messages, and possible remedies for each issue.
- [Event Store errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/event-store-errors-mediation.md): This reference provides details on Event Store errors, including error codes, messages, and possible remedies for each issue.
- [File, ZDP & Prefetch errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/file-zdp-prefetch-errors-mediation.md): This reference details file, ZDP, and prefetch errors, covering error codes, their messages, and suggested remedies.
- [Source & Target Validation errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/source-target-validation-errors-mediation.md): This document provides error codes and remedies for source and target validation, covering a range of issues from missing connections to unsupported data formats.
- [Pipeline Validation errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/pipeline-validation-errors-mediation.md): This document provides details on error codes and remedies for pipeline validation.
- [Package Management errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/package-management-errors-mediation.md): This reference provides error codes and remedies for package management issues, including file type support, package duplication, and version conflicts.
- [Replay and Reprocess errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/replay-reprocess-errors-mediation.md): This document provides details on replaying and reprocessing errors including error messages and possible remedies.
- [Scheduler & Prefetch errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/scheduler-prefetch-errors-mediation.md): This document provides error codes and remedies for Scheduler and Prefetch operations, covering a range of issues from invalid job IDs to unsupported prefetch modes.
- [SQL & Miscellaneous errors](https://zuora.ferndocs.com/docs/platform/extensibility/mediation/error-message-reference-for-mediation/sql-misc-errors-mediation.md): This document details SQL and miscellaneous errors, including error codes, messages, and possible remedies.