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This page documents a legacy topology. Do not use it as a deployment guide for Midaz v4.
Earlier installations could run CRM separately. Midaz v4 embeds CRM in the Ledger: use Holder and Instrument endpoints only through /v2/organizations/{organization_id}/.... The Ledger is the current deployment unit. CRM is not a plugin, standalone service, or separate v4 release.

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What a v4 installation does not use

Do not use the standalone CRM service, port 4003, the X-Organization-Id header, or the legacy CRM v1 alias endpoints in a v4 installation. Fees in Midaz v4 runs in the Ledger and is available only on /v2. If you retire an older standalone CRM deployment, retain its MongoDB backup and release values. Then reconcile Holder and Instrument records through the Ledger /v2 API before you decommission the old workload. Preserve that release record. See CRM getting started and the Midaz chart README.