I accidently removed one of the error keys, CmkErrorVaultNotFound, from pull request https://github.com/MicrosoftDocs/azure-docs-pr/pull/112730. Restoring the missing key and the new work.

Author: priestlg

articles/storage/common/storage-import-export-encryption-key-portal.md

@@ -97,7 +97,8 @@ If you receive any errors related to your customer managed key, use the followin
 |----------------|------------|-----------------|
 | CmkErrorAccessRevoked | Applied a customer managed key but the key access is currently revoked. For more information, see how to [Enable the key access](https://docs.microsoft.com/rest/api/keyvault/vaults/updateaccesspolicy).                                                      | Yes, check if: <ol><li>Key vault still has the MSI in the access policy.</li><li>Access policy provides permissions to Get, Wrap, Unwrap.</li><li>If key vault is in a vNet behind the firewall, check if **Allow Microsoft Trusted Services** is enabled.</li></ol>                                                                                            |
 | CmkErrorKeyDisabled      | Applied a customer managed key but the key is disabled. For more information, see how to [Enable the key](https://docs.microsoft.com/rest/api/keyvault/vaults/createorupdate).                                                                             | Yes, by enabling the key version     |
-| CmkErrorKeyNotFound      | Applied a customer managed key but can't find the key vault associated with the key.<br>If you deleted the key vault, you can't recover the customer managed key.  If you migrated the key vault to a different tenant, see [Change a key vault tenant ID after a subscription move](https://docs.microsoft.com/azure/key-vault/key-vault-subscription-move-fix). |   If you deleted the key vault:<ol><li>Yes, if it is in the purge-protection duration, using the steps at [Recover a key vault](https://docs.microsoft.com/azure/key-vault/general/soft-delete-powershell#recovering-a-key-vault).</li><li>No, if it is beyond the purge-protection duration.</li></ol><br>Else if the key vault underwent a tenant migration, yes, it can be recovered using one of the below steps: <ol><li>Revert the key vault back to the old tenant.</li><li>Set `Identity = None` and then set the value back to `Identity = SystemAssigned`. This deletes and recreates the identity once the new identity has been created. Enable `Get`, `Wrap`, and `Unwrap` permissions to the new identity in the key vault's Access policy.</li></ol>|
+| CmkErrorKeyNotFound      | Applied a customer managed key but can't find the key. <br>If the key is deleted and purged after the retention period, you can't recover the key. If you backed up the key, you can restore the key to resolve this issue. | No, the key has been deleted and also got purged after the retention period. <br>Yes, only if the customer has the key backed-up and restores it. |
+| CmkErrorVaultNotFound | Applied a customer managed key but can't find the key vault associated with the key.<br>If you deleted the key vault, you can't recover the customer managed key.  If you migrated the key vault to a different tenant, see [Change a key vault tenant ID after a subscription move](https://docs.microsoft.com/azure/key-vault/key-vault-subscription-move-fix). |   If you deleted the key vault:<ol><li>Yes, if it is in the purge-protection duration, using the steps at [Recover a key vault](https://docs.microsoft.com/azure/key-vault/general/soft-delete-powershell#recovering-a-key-vault).</li><li>No, if it is beyond the purge-protection duration.</li></ol><br>Else if the key vault underwent a tenant migration, yes, it can be recovered using one of the below steps: <ol><li>Revert the key vault back to the old tenant.</li><li>Set `Identity = None` and then set the value back to `Identity = SystemAssigned`. This deletes and recreates the identity once the new identity has been created. Enable `Get`, `Wrap`, and `Unwrap` permissions to the new identity in the key vault's Access policy.</li></ol>|
 
 ## Next steps