Microsoft for Startups LinkedIn verification fails with BadRequest (Conflict) - Azure support case was misrouted

Submit a Microsoft for Startups support request, not a paid Azure technical-support case, because LinkedIn onboarding and verification failures fall within Microsoft for Startups Program Support.

Submit through the external request form

Because the failed LinkedIn callback prevents you from reaching the program-support control in the portal:

1. Open the official Microsoft for Startups support request form: Microsoft for Startups support request. Microsoft’s Azure sign-up troubleshooting documentation explicitly directs users who cannot verify their Microsoft for Startups status to this form.^1^
2. Classify the request as program/onboarding/verification, rather than an Azure service technical issue. Program onboarding and verification are owned by Microsoft for Startups Program Support; Azure runtime failures and engineering issues use Azure Support instead.^2^
3. Include:
   • Exact error: {"error":{"code":"BadRequest","message":"BadRequest (Conflict)"}}
   • The callback host and that the failure occurs after successful LinkedIn authorization
   • Startup name
   • Founders Hub sign-in email
   • LinkedIn profile URL or account identifier
   • Approximate date and time of recent failures, including time zone
   • Screenshots of the callback and LinkedIn’s two app authorizations
   • Previous Azure case number: 2610290030000733
   • A note that the Azure case was closed after being classified as a paid technical-support issue
   • A request to inspect and, if appropriate, reset the Founders Hub identity-linking/onboarding state

Do not post account identifiers or screenshots containing personal details publicly; provide them only through the support request.

Suggested escalation text

Subject: Founders Hub LinkedIn callback returns BadRequest (Conflict) — onboarding blocked

My Microsoft for Startups onboarding is blocked at Verify with LinkedIn. LinkedIn authorization completes, but the Founders Hub callback returns:

{"error":{"code":"BadRequest","message":"BadRequest (Conflict)"}}

LinkedIn shows two Microsoft for Startups app authorizations. The error has persisted for approximately one week across multiple browser sessions. Please investigate the Founders Hub account/LinkedIn identity mapping and reset or unlink any conflicting onboarding record if appropriate.

This is a Microsoft for Startups program onboarding and verification issue, not an Azure workload failure. Azure support case 2610290030000733 was closed after being routed as a paid technical issue.

Startup name:
Founders Hub sign-in email:
LinkedIn profile/account:
Latest failure date/time and time zone:
Screenshots attached.

The exact backend cause cannot be confirmed from the callback response alone. Although a stale or duplicate identity mapping is plausible, support must inspect the account before clearing anything.

If the Program Overview page is accessible

Use Azure portal → Program Overview → Overview → Your Microsoft Team → Get program support. That is the current documented path, with 24/7 English-language coverage.^2^

For memberships created before May 29, 2026, the older portal path is Microsoft for Startups Portal → ? → Submit a Support Ticket.^3^ This branch applies only to those older memberships.

A Q&A moderator may help route attention, but cannot directly inspect or modify private Founders Hub identity records. The request form or Get program support route is required for that account-level action.

References

1. Troubleshoot issues when you sign up for a new account in the Azure portal
2. Microsoft for Startups Program Support | Microsoft Learn
3. Microsoft for Startups Portal