Customer Onboarding Templates

Email Templates for Developer Products

Developers hate marketing emails. Here's how to send ones they actually read.

Developers read emails differently. They skim for code examples, links to docs, and technical details. They close anything that smells like marketing. These templates are built for that audience - clear, technical, and respectful of their time.

Ready-to-Use Templates

Copy these templates and customize them for your needs. Each includes HTML and plain text versions.

Developer Welcome
Welcome email after API key creation
Developer-first onboarding
Subject Line

Your {{productName}} API key is ready

Preview Text

Here's everything you need to make your first API call.

Personalization Variables:
{{productName}}{{firstName}}{{codeExample}}{{docsUrl}}{{sdkUrl}}{{examplesUrl}}{{communityUrl}}{{companyAddress}}
Email Preview
Breaking API Change
Advance notice of breaking changes or deprecations
API versioning and deprecation notices
Subject Line

[Action Required] {{productName}} API v{{version}} deprecation on {{date}}

Preview Text

Breaking change notice - migration guide included.

Personalization Variables:
{{productName}}{{changeSummary}}{{effectiveDate}}{{affectedEndpoints}}{{changeDescription}}{{migrationCode}}{{migrationGuideUrl}}{{githubUrl}}{{companyAddress}}
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New SDK Release
Announcing a new SDK, library, or integration
SDK and library announcements
Subject Line

New: {{sdkName}} for {{productName}}

Preview Text

Install in one line. Docs included.

Personalization Variables:
{{productName}}{{sdkName}}{{language}}{{installCommand}}{{sdkFeatureOne}}{{sdkFeatureTwo}}{{sdkFeatureThree}}{{sdkDocsUrl}}{{companyAddress}}
Email Preview
API Changelog Digest
Monthly or bi-weekly roundup of API changes and improvements
Regular product update digests
Subject Line

{{productName}} API changelog - {{month}} {{year}}

Preview Text

{{changeCount}} updates this month. Here's what shipped.

Personalization Variables:
{{productName}}{{month}}{{year}}{{changeCount}}{{newFeatureOne}}{{newFeatureTwo}}{{improvementOne}}{{improvementTwo}}{{fixOne}}{{fixTwo}}{{changelogUrl}}{{feedbackUrl}}{{companyAddress}}
Email Preview
API Deprecation Warning
Formal notice that an API endpoint or feature is being deprecated
Endpoint deprecation and sunset notices
Subject Line

[Deprecation] {{endpointName}} sunset on {{sunsetDate}}

Preview Text

This endpoint is going away. Here's the replacement.

Personalization Variables:
{{productName}}{{endpointName}}{{sunsetDate}}{{usageCount}}{{deprecationReason}}{{replacementCode}}{{migrationGuideUrl}}{{companyAddress}}
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Developer Hackathon Invite
Inviting developers to a hackathon, build challenge, or coding event
Hackathons, build challenges, and developer events
Subject Line

Build with {{productName}} - {{eventName}} starts {{startDate}}

Preview Text

{{prizeSummary}}. Register now.

Personalization Variables:
{{productName}}{{firstName}}{{eventName}}{{startDate}}{{endDate}}{{location}}{{prizeSummary}}{{theme}}{{criteriaOne}}{{criteriaTwo}}{{criteriaThree}}{{registrationUrl}}{{communityUrl}}{{companyAddress}}
Email Preview
Documentation Update
Notifying developers about new or significantly updated documentation
Documentation launches and major rewrites
Subject Line

New docs: {{docTitle}}

Preview Text

We rewrote our {{docTopic}} docs. Here's what changed.

Personalization Variables:
{{productName}}{{docTitle}}{{docSummary}}{{docTopic}}{{topicOne}}{{topicTwo}}{{topicThree}}{{topicFour}}{{codePreview}}{{docUrl}}{{githubUrl}}{{companyAddress}}
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Beta Program Invite
Inviting developers to test a new feature or API before general release
Early access and beta program invitations
Subject Line

You're invited to the {{featureName}} beta

Preview Text

Early access. We want your feedback before launch.

Personalization Variables:
{{productName}}{{firstName}}{{featureName}}{{selectionReason}}{{betaBenefitOne}}{{betaBenefitTwo}}{{betaBenefitThree}}{{betaCode}}{{betaSignupUrl}}{{feedbackUrl}}{{companyAddress}}
Email Preview
Incident Follow-Up
Post-incident report after a service outage or degraded performance
Post-incident communication and transparency
Subject Line

Incident resolved: {{incidentTitle}}

Preview Text

What happened, what we did about it, and what we're changing.

Personalization Variables:
{{productName}}{{incidentTitle}}{{incidentDuration}}{{incidentImpact}}{{rootCause}}{{preventionOne}}{{preventionTwo}}{{preventionThree}}{{postmortemUrl}}{{companyAddress}}
Email Preview
New API Endpoint Announcement
Announcing a new API endpoint or capability
New API endpoint and feature announcements
Subject Line

New endpoint: {{endpointMethod}} {{endpointPath}}

Preview Text

New API endpoint live now. Code example inside.

Personalization Variables:
{{productName}}{{endpointMethod}}{{endpointPath}}{{endpointDescription}}{{requestExample}}{{responseExample}}{{endpointDocsUrl}}{{companyAddress}}
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Rate Limit Change Notice
Informing developers about changes to API rate limits
Rate limit policy updates and capacity planning
Subject Line

{{productName}} rate limit update - effective {{effectiveDate}}

Preview Text

Rate limits are changing. Check if you're affected.

Personalization Variables:
{{productName}}{{firstName}}{{effectiveDate}}{{endpointOne}}{{currentLimitOne}}{{newLimitOne}}{{endpointTwo}}{{currentLimitTwo}}{{newLimitTwo}}{{currentUsage}}{{usageAssessment}}{{retryCode}}{{rateLimitDocsUrl}}{{companyAddress}}
Email Preview
New Integration Available
Announcing a new third-party integration or partnership
Third-party integration and partnership announcements
Subject Line

{{productName}} + {{integrationName}}: now connected

Preview Text

Set it up in 5 minutes. Here's how.

Personalization Variables:
{{productName}}{{integrationName}}{{integrationDescription}}{{useCaseOne}}{{useCaseTwo}}{{useCaseThree}}{{setupCode}}{{integrationDocsUrl}}{{companyAddress}}
Email Preview
Developer Spotlight
Showcasing what a developer or team built with your API
Case studies and community showcase emails
Subject Line

How {{developerName}} built {{projectName}} with {{productName}}

Preview Text

Real project, real code, real results.

Personalization Variables:
{{productName}}{{developerName}}{{projectName}}{{problemDescription}}{{approachDescription}}{{spotlightCode}}{{resultsSummary}}{{caseStudyUrl}}{{companyAddress}}
Email Preview

Best Practices

Include code examples in every email. Developers want to see how things work.

Link to documentation, not marketing pages.

Use plain, direct language. No buzzwords, no hype.

Give 30+ days notice for breaking changes.

Make reply-to work - developers will email you questions.

Common Mistakes

Marketing-heavy copy that developers immediately ignore.

Breaking changes without code migration examples.

Linking to landing pages instead of documentation.

Using buzzwords like 'revolutionary,' 'game-changing,' or 'disruptive.'

Subject Line Examples

Timing & Performance

Best Days
Tuesday, Wednesday, Thursday
Best Times
9:00 AM, 2:00 PM
Open Rate
25-35%
Click Rate
3-5%

Personalization Tips

Code Examples Are Your Copy

For developers, a curl command or code snippet says more than any marketing paragraph. Lead with code, follow with explanation. If your email doesn't have a code example, it probably doesn't need to exist.

Plain Language, No Buzzwords

Developers can smell marketing copy from the subject line. "Introducing our revolutionary new API" gets deleted. "New endpoint: GET /v2/users - docs attached" gets read. Be direct.

30 Days for Breaking Changes

Breaking API changes need advance notice with a clear migration path. Send the first notice 30+ days before, include code examples for migration, and follow up with reminders. Your developers will thank you.

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Frequently Asked Questions

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