Scope
Define which systems, data categories, and services are migrating and what will remain on-premises.
A clear migration letter reduces uncertainty by specifying timing, responsibilities, and safeguards; it helps maintain trust, meets contractual or regulatory notice obligations, and provides an auditable record of communication.
Define which systems, data categories, and services are migrating and what will remain on-premises.
Provide a timeline with key windows, expected downtime, and cutover dates so recipients can plan operations.
Summarize backup, rollback, encryption, and testing procedures that protect data integrity during migration.
List data types affected (PII, PHI, financial records) and note applicable compliance regimes.
Identify project lead(s), support channels, and escalation points for questions or incident reporting.
Specify any recipient tasks such as credential updates, service reconfiguration, or verification steps.
| Field | Configuration |
|---|---|
| Source Storage | Google Drive | Box | On-premise (choose one) |
| Destination Cloud | AWS | Azure | Google Cloud (specify region) |
| Authentication | Email link, SMS code, or stronger MFA |
| Notifications | Immediate email + optional Slack / Teams alert |
Ensure the chosen platform supports secure delivery, audit trails, and the required signer authentication methods.
Confirm that storage, export formats, and retention settings meet legal and internal recordkeeping requirements.
| signNow | DocuSign | Adobe Sign | PandaDoc | HelloSign | |
|---|---|---|---|---|---|
| Starting Price | $8/user/mo | $15/user/mo | $14/user/mo | $19/user/mo | $15/user/mo |
| Free Trial | 7-day free trial | Varies | Varies | Varies | Varies |
| Bulk Send | Yes | Yes | Yes | Yes | No |
| Audit Trail | Yes | Yes | Yes | Yes | Yes |
| HIPAA Compliant | Yes | Yes | Yes | No | No |
| Envelope Cap | No cap | 100 envelopes/user/year | Varies | Varies | Varies |
The migration letter is used by IT, privacy, compliance, procurement, and customer success teams to communicate planned cloud changes.
Tailor recipient lists by stakeholder role to ensure relevant operational and contractual obligations are addressed.
30–90 days prior for major migrations to allow planning
Send a reminder 48–72 hours before the migration window
Confirm start time and expected downtime on migration day
Notify recipients when services are live and validated
Keep delivery receipts and signed acknowledgements for the retention period