# Error Handling & Reconciliation

### Error Handling

Error Scenarios and Handling:

1. **Invalid Input Data Formats** – MOSIP rejects the packet if mandatory information is missing.
2. **Duplicate Registration Requests** – Currently not rejected since CRVS is the source of truth. MOSIP generates multiple UINs for duplicate requests.
3. **Missing Mandatory Fields** – Packet validation fails and is rejected.
4. **eSignet Authentication Failures** – Authentication token not generated; request cannot proceed.
5. **Network/Connectivity Issues** – Retry mechanisms should be implemented by CRVS.

### Retry Mechanisms

### Reconciliation Strategies

### Failed Packet Management

### Logging & Monitoring

***

### Learn More

* [Registration Processor Overview](/1.2.0/id-lifecycle-management/identity-issuance/registration-processor/overview.md) - Understanding packet processing workflows, stages, and error handling mechanisms
* [Operational Considerations](/1.2.0/interoperability/integrations/mosip-crvs-integration/prerequisites-configurations-and-operations/operational-considerations.md) - System setup, monitoring requirements, and operational best practices
* [Notifications & Event Handling](/1.2.0/interoperability/integrations/mosip-crvs-integration/notifications-and-event-handling.md) - WebSub event subscription and status notification patterns
* [API Reference & Data Models](/1.2.0/interoperability/integrations/mosip-crvs-integration/api-reference-and-data-models.md) - Packet creation, trigger APIs, and validation requirements


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