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SL_E_CIDIID_MISMATCHED
How to interpret this result
SL_E_CIDIID_MISMATCHED identifies a specific point in offline IID/CID activation: the offline activation exchange in which an Installation ID is generated for one activation context and a Confirmation ID is returned for that same context. Its diagnostic consequence is that the Confirmation ID was issued for a different Installation ID than the one represented by the current request.
Record both this result and 0xC004F031. Licensing wrappers often preserve only a friendly message, but the facility value is what separates key, KMS, certificate, offline, OEM, Store, and state-machine failures.
Diagnostic sequence
- Begin with the operation that emitted this result and its target Activation ID.
- Inventory Activation ID, product key, Installation ID, Confirmation ID, hardware binding and deposit operation; this establishes whether the request was aimed at the intended product and activation channel.
- Use events and tool output to demonstrate: record the IID generation time, corresponding CID receipt, Activation ID, machine state changes, and the workflow that paired the two values.
- Rule out the adjacent case: both identifiers may be well formed; their pair is wrong.
Evidence to preserve before changing anything
Record the IID generation time, corresponding CID receipt, Activation ID, machine state changes, and the workflow that paired the two values. Before changing the system, add the following context:
- Product identity: partial product key and edition/channel.
- Activation context: hardware or environment change between IID generation and CID deposit.
- State at failure: exact slmgr or API operation and Software Protection event.
- Correlation evidence: Activation ID selected for /dti and /atp.
- Change history: IID and CID length/version without publishing the complete identifiers.
Two platform rules are especially relevant to this result. The Installation ID must be obtained before the Confirmation ID is deposited; the returned CID is tied to the activation context represented by that IID. Formatting errors, unsupported versions, mismatched IDs, and a failure to save a valid CID occur at different points and should not be merged into one “telephone activation failed” message.
How this differs from adjacent licensing codes
| Result | Different condition |
|---|---|
SL_E_CIDIID_NOT_DEPOSITED | Different condition: a Confirmation ID passed validation far enough to be processed but could not be committed to the local licensing state. |
SL_E_CIDIID_INVALID_DATA_LENGTH | Different condition: the local deposit operation receives an IID/CID payload with the wrong total encoded length. |
SL_E_CIDIID_VERSION_NOT_SUPPORTED | Different condition: the IID/CID version is well formed but unsupported by the current Software Protection Platform. |
The diagnostic fork is precise: both identifiers may be well formed; their pair is wrong. A broad instruction to “try another key” or “check the Internet” would discard the more specific condition already established by the code.
Targeted fix
The appropriate correction is to generate a current IID and acquire a new CID instead of reusing a stored response. Keep the original evidence until a subsequent status query confirms that the intended Activation ID reached the expected state.
Representative failure: An operator accidentally applies the CID for device A to device B.
Actions that usually make this harder to diagnose
- Avoid reusing a CID produced for another IID, product key, or machine state.
- Avoid posting complete installation or confirmation identifiers in public logs.
Verification after the change
Build a regression case that intentionally creates “the Confirmation ID was issued for a different Installation ID than the one represented by the current request” and asserts it. The corrected case should change only the relevant input, then verify the same Activation ID, final LicenseStatus/Reason, and any relevant grace, renewal, certificate, binding, or expiry data.
Technical references
- Slmgr.vbs activation options — platform behavior relevant to this HRESULT.
- Microsoft activation error-code troubleshooting — diagnostic and operational context.
- ActivateOffline WMI method — supported tools and state fields used to verify the resulting state.
- SoftwareLicensingProduct WMI class — Microsoft guidance for the activation mechanism represented by this HRESULT.
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