What shipping an OAuth app on Slack, Microsoft, and Atlassian actually takes
Blog post from WorkOS
OAuth implementation is usually predictable, but production launches for integrations with Slack, Microsoft, Atlassian, and Google are often delayed by provider-controlled approval processes, organizational verification, and recurring compliance requirements. Slack requires marketplace applicants to have at least five active workspace installs before submission, scrutinizes listings, scopes, and test access, and can take up to 10 weeks for functional review, with later changes to scopes or features requiring re-review. Microsoft’s primary hurdle is publisher verification, which depends on a verified partner account, eligible Entra registration, domain ownership, and authorized organizational roles, although the final verification can be quick once this groundwork is complete. Atlassian requires business and identity verification, privacy and security approvals, and app review, while enforcing authentication and trademark rules and requiring renewed approval for certain major changes. Google adds the most persistent burden for apps using restricted scopes through security assessments that may take about six weeks and must be repeated annually. The discussion argues that teams should plan approval windows, scope decisions, customer pilots, legal documentation, and partner-account setup alongside engineering work; it also presents WorkOS Pipes and Relay as tools that can simplify OAuth development, testing, token handling, and secure API access but cannot bypass providers’ production approval requirements.
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