# Operational Considerations

This section covers following requirements needed to run the MOSIP–CRVS integration.

Use it to create the operational entities that CRVS-initiated workflows depend on (centres, machines, officers, and an application identity).

* [Create Centre](https://docs.mosip.io/1.2.0/interoperability/integrations/mosip-crvs-integration/prerequisites-configurations-and-operations/operational-considerations/create-centre): Create a centre to represent the physical/organizational location where CRVS operations are anchored.
* [Create the Default Officer](https://docs.mosip.io/1.2.0/interoperability/integrations/mosip-crvs-integration/prerequisites-configurations-and-operations/operational-considerations/create-the-default-officer): Configure a default officer for cases where the system needs an operational “owner” for a transaction.
* [Create Machine](https://docs.mosip.io/1.2.0/interoperability/integrations/mosip-crvs-integration/prerequisites-configurations-and-operations/operational-considerations/create-machine): Register a machine/device that will be associated with a centre for operational tracking and access controls.
* [Map Officer to Centre and Machine](https://docs.mosip.io/1.2.0/interoperability/integrations/mosip-crvs-integration/prerequisites-configurations-and-operations/operational-considerations/map-officer-to-centre-and-machine): Assign an officer/operator to the right centre and machine so transactions are authorized and auditable.
* [Create the Application ID (AID)](https://docs.mosip.io/1.2.0/interoperability/integrations/mosip-crvs-integration/prerequisites-configurations-and-operations/operational-considerations/create-the-application-id-aid): Create an application identity used by CRVS-initiated flows and integrations where an AID is required.

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### Learn more

* [Security & Authentication](https://docs.mosip.io/1.2.0/interoperability/integrations/mosip-crvs-integration/prerequisites-configurations-and-operations/prerequisites/security-and-authentication) - OAuth client setup, access tokens, and eSignet flow.
* [Policy Configuration & Customization](https://docs.mosip.io/1.2.0/interoperability/integrations/mosip-crvs-integration/prerequisites-configurations-and-operations/configuration-and-customization) - Credential sharing choices (PSUT/UIN/VID) and partner policy setup.
* [Notifications & Event Handling](https://docs.mosip.io/1.2.0/interoperability/integrations/mosip-crvs-integration/notifications-and-event-handling) - WebSub topics for credentials and packet status updates.
* [API Reference & Data Models](https://docs.mosip.io/1.2.0/interoperability/integrations/mosip-crvs-integration/api-reference-and-data-models) - Packet APIs, payloads, and data structures used by CRVS.
* [Core Integration Principles](https://docs.mosip.io/1.2.0/interoperability/integrations/mosip-crvs-integration/integration-overview-and-context/core-integration-principles) - Trust boundary, verification expectations, and defaults.
* [MOSIP Configuration Changes for CRVS Birth and Death Requests](https://docs.mosip.io/1.2.0/interoperability/integrations/mosip-crvs-integration/prerequisites-configurations-and-operations/prerequisites/configurations-details) - ID schema fields, auth-policy updates, and routing configs.
* [Error Handling & Reconciliation](https://docs.mosip.io/1.2.0/interoperability/integrations/mosip-crvs-integration/error-handling-and-reconciliation) - Failures, retries, and reconciliation patterns.