Superior Court of California, County of Amador — Exchange 2019 on-premises to Exchange Online (2026)
Delivered — payment-corroborated (client payment records published)First-pass editionSuperior Court of California, County of Amador · 2026 · Project ID EPC-2026-AMADOR-EXO
Evidence record: Superior Court of California, County of Amador evidence record with redacted documents and SHA-256 hashes
Last updated by Errin O'Connor, Founder & Chief AI Architect, EPC Group
Delivered — payment-corroborated (client payment records published). Superior Court of California, County of Amador engaged EPC Group (O'Connor Enterprise Group, Inc., doing business as EPC Group) for Exchange 2019 on-premises to Exchange Online — per Purchase Order 4500158879; invoices settled by the Judicial Council of California on February 20, April 9 and June 5, 2026. Project ID EPC-2026-AMADOR-EXO. The engagement was completed and paid in full (client payment records published in the evidence record).
First-pass edition. The facts in the verification line and the project-facts table come from the documents named there. The engagement narrative below is written by EPC Group from the engagement type and the documented scope, is marked EPC-reported, and is pending review by Errin O'Connor. Delivery status comes from EPC Group's accounts-receivable record as stated by Errin O'Connor on 2026-10-15; no other result is claimed that the documents or project records do not support.
Summary
In 2026, EPC Group completed Exchange 2019 on-premises to Exchange Online for Superior Court of California, County of Amador on Exchange Online, Microsoft 365, Entra ID, led by EPC Group's senior architects addressing on-premises mail infrastructure that must be retired in favor of Microsoft 365 while preserving records, retention and continuity of service for a public body. The work ran through EPC Group's delivery lifecycle as EPC Group describes its engagements: assess, modernize, govern, operate, enable. The client accepted the deliverables and paid in full, as the published client payment records show; EPC Group reports that its objectives for the engagement were met. Verification: Delivered — payment-corroborated (client payment records published). What the documents establish, and what they do not, is stated in Evidence and limitations below.
Project facts
| Field | Value | Source |
|---|---|---|
| Client | Superior Court of California, County of Amador | document |
| Industry | Judiciary (California superior court) | document / public record |
| Engagement date | February 13, 2026 | document |
| Work | Exchange 2019 on-premises to Exchange Online (Microsoft 365) migration | document |
| Microsoft products | Exchange Online; Microsoft 365; Entra ID | document / scope |
| Scope unit | per Purchase Order 4500158879; invoices settled by the Judicial Council of California on February 20, April 9 and June 5, 2026 | document |
| EPC Group role | Consulting and delivery under the instrument named above | document |
| Lead architect | EPC Group senior architects (the published instrument does not name the lead; EPC-reported) | EPC-reported |
| Delivery status | Completed; invoiced and paid in full. Client-generated payment records are published in the evidence record and EPC Group's accounts-receivable record agrees. EPC Group treats payment as acceptance; no separate acceptance record is published for this engagement. | evidence record + EPC AR record |
| Verification class | Delivered — payment-corroborated (client payment records published) | Evidence Center convention |
| Evidence record | https://www.epcgroup.net/evidence/amador-superior-court-exchange-online-microsoft-365-migration-2026 | — |
| External source | none published yet | — |
| Project ID | EPC-2026-AMADOR-EXO | EPC Group |
What the document states
Purchase Order 4500158879 (February 13, 2026): 'Initiative for Migration from Microsoft Exchange 2019 On-Prem to Microsoft Exchange Online Microsoft 365'; three Judicial Council of California payment advices.
Starting environment (EPC-reported, first pass)
An engagement of this type begins with an on-premises Exchange 2019 organization, the hybrid or cutover path to Exchange Online, Entra ID synchronization, mailbox sizes and archive requirements, mail-flow and MX dependencies, mobile device management, and the retention and records obligations of a court or agency. The specific inventory for this engagement is held in EPC Group's project records and will replace this paragraph when published.
Business problem (EPC-reported, first pass)
On-premises mail infrastructure that must be retired in favor of Microsoft 365 while preserving records, retention and continuity of service for a public body.
EPC Group's responsibility
Hybrid or cutover design, Entra ID synchronization validation, tenant configuration, mailbox migration to Exchange Online, mail-flow cutover, client and mobile reconfiguration support, and knowledge transfer to the court's IT team.
Technical decisions (EPC-reported, first pass)
The decisions this kind of engagement turns on are hybrid versus cutover migration, licensing-aligned retention and archive configuration, MX and connector cutover timing, conditional access and MFA posture for mailboxes, and the decommissioning sequence for the on-premises organization. The decisions actually taken for Amador Superior Court will be stated here from the project record.
Delivery sequence (EPC-reported, first pass)
Typical sequence for this engagement type: readiness assessment → tenant and identity preparation → pilot migration → batched mailbox migration → MX and client cutover → on-premises decommission → documentation and handover. Dates and acceptance for this engagement will be stated from the project record.
Results
| Metric | Baseline | Observed result | Period | Source | Verification class |
|---|---|---|---|---|---|
| Scope delivered against the instrument | as contracted | Completed; invoiced and paid in full | engagement period | client payment records (published) + EPC AR record | Delivered — payment-corroborated (client payment records published) |
| Client acceptance | — | Deliverables accepted; EPC Group's objectives met | close-out | payment in full + EPC-reported | Delivered — payment-corroborated (client payment records published) |
| Primary technical outcome (migration completeness, platform live, deliverable detail) | pending | pending project record | — | project record | pending |
| Service interruption during cutover (where applicable) | planned window | pending | cutover | cutover log | pending |
Completion, acceptance and payment are stated from EPC Group's records; the technical rows stay pending until the project record is published. No figure is invented.
Client perspective
The client accepted the deliverables and paid every invoice in full (the payment records are published in the evidence record). No client quotation is published on this page; where a client has given a written statement or a review, it is linked from the evidence record.
Evidence and limitations
The evidence record at https://www.epcgroup.net/evidence/amador-superior-court-exchange-online-microsoft-365-migration-2026 publishes the document(s) with redacted page images and SHA-256 hashes. The instrument establishes the client, the supplier, the service and the date as stated above. It does not by itself establish delivery dates, volumes, acceptance or outcomes; those require the project records referenced in the Results table. Completion and payment in full are established by EPC Group's accounts-receivable record, corroborated by the client payment records published in the evidence record.
Lessons for similar organizations (EPC-reported)
- Decide retention and archive policy before migration so mail lands governed, not re-governed later.
- Pilot with the busiest mailboxes, not the easiest ones.
- Treat the on-premises decommission as its own phase with its own acceptance.
Related service
Exchange Online and Microsoft 365 migration ·Talk to a senior architect
Author: Errin O'Connor, Founder & Chief AI Architect, EPC Group · Published: 2026-10-15 · Substantively updated: 2026-10-15.