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CERTSRV_E_SIGNATURE_POLICY_REQUIRED
CERTSRV_E_SIGNATURE_POLICY_REQUIRED The request is missing signature-policy information required by the selected certificate template.
What to check for CERTSRV_E_SIGNATURE_POLICY_REQUIRED
- Check the template’s issuance requirements to identify the required policy and number of authorized signatures.
- Use a requester or enrollment-agent certificate that carries the application and issuance policies expected by the template.
- Do not remove signature policy requirements solely to simplify enrollment; they are often the control that authorizes delegated issuance.
Microsoft: Certificate template concepts
Microsoft: Manage certificate templates
Microsoft: Audit Certification Services
Diagnostic interpretation of CERTSRV_E_SIGNATURE_POLICY_REQUIRED
CERTSRV_E_SIGNATURE_POLICY_REQUIRED has the HRESULT value 0x80094809. AllStat records the condition as “The request is missing required signature policy information.”. For CERTSRV_E_SIGNATURE_POLICY_REQUIRED, in practice, interpret that wording at the boundary owned by Active Directory Certificate Services enrollment and CA policy, rather than treating the value as a generic Windows message.
Evidence to capture for CERTSRV_E_SIGNATURE_POLICY_REQUIRED
- Record the exact COM method or Windows API, its input object, the calling thread, and the full 0x80094809 value before a wrapper converts it to an exception or Boolean result.
- Capture any IErrorInfo text, activity identifier, event-log entry, and subsystem trace that mentions CERTSRV_E_SIGNATURE_POLICY_REQUIRED or the certsrv / signature / policy / required operation.
- For CERTSRV_E_SIGNATURE_POLICY_REQUIRED, check the documented return contract of the specific API because the same HRESULT can require different recovery in different interfaces.
Retry and recovery for CERTSRV_E_SIGNATURE_POLICY_REQUIRED
Retry CERTSRV_E_SIGNATURE_POLICY_REQUIRED only when the owning API documents a transient state or after the condition described as “The request is missing required signature policy information.” has changed. For CERTSRV_E_SIGNATURE_POLICY_REQUIRED, configuration, policy, format, and authorization failures normally require correction first; an immediate loop can hide the original call site and add secondary errors.
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