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Article ID: 134413, created on Jun 27, 2019, last review on Jun 27, 2019

  • Applies to:
  • Operations Automation 7.1
  • Operations Automation 6.0


Task to provision Azure fails with the error:

Service Creation Failed: Operation Automation service was not created. Task "Provisioning "Tenant" for APS application Azure Cloud Solution Provider" (id = 68728603) is failed with error: "APS Application Error:
500 Internal Server Error
[unknown] Provisioning: resource 18cd3b3a-0a08-4450-a381-13c7d8f5721b of type 'tenants' ( for APS application 'Azure Cloud Solution Provider-3.0-61': An unexpected error has occurred..
Body: {
"error": "unknown",
"message": "An unexpected error has occurred.",
"category": "unknown",
"context": null,
"http_request": "POST /aps/tenants to ''"

In the logs we can see the following error:

[2016-09-13 13:28:41.5177  72cfe666-3e9c-4f2c-8c7c-e1340e0944f6  19  ERROR] ApplicationsController.GetDomainCandidates finished by exception System.NullReferenceException: Object reference not set to an instance of an object.
[2016-09-13 13:28:41.5177  72cfe666-3e9c-4f2c-8c7c-e1340e0944f6  19  ERROR] System.NullReferenceException: Object reference not set to an instance of an object.
StackTrace:    at Odin.AzureCSP.Crest.Api.GetTenantDomain(String tenantName)
   at System.Linq.Enumerable.WhereSelectListIterator`2.MoveNext()
   at System.Linq.Enumerable.<DistinctIterator>d__81`1.MoveNext()
   at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
   at System.Linq.Enumerable.<UnionIterator>d__88`1.MoveNext()
   at System.Linq.Enumerable.WhereEnumerableIterator`1.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at Odin.AzureCSP.Model.Application.FindDomainCandidates(ILocalStorage localStorage, Int32 accountId)
   at Odin.AzureCSP.Controllers.ApplicationsController.<>c__DisplayClass33.<GetDomainCandidates>b__32()
   at Odin.AzureCSP.Controllers.AzureApsControllerBase.ExecuteControllerAction(String methodName, Func`1 action, Object[] methodParams)
[2016-09-13 13:28:41.5177  72cfe666-3e9c-4f2c-8c7c-e1340e0944f6  19  DEBUG] <App> Incoming request 'GET' has been finished: HTTP 500 (InternalServerError)
- headers:
        API-Error-Category: unknown
- body:
  "error": "unknown",
  "message": "An unexpected error has occurred.",
  "category": "unknown",
  "context": null


The cause of the issue is that the secret key configured in Azure instance is invalid and it is required to generate a new one.

C:\PST>curl -E "C:\Program Files (x86)\SWsoft\PEM\APS\certificates\poa.pem" -ksS -X POST -d@data.json

{"error":"invalid_client","error_description":"AADSTS70002: Error validating credentials. AADSTS50012: Invalid client secret is provided.\r\nTrace ID: 9a146f0d-e6ba-4de3-ad4a-c0855405c2c1\r\nCorrelation ID: accd351e-4172-4dc7-af87-a8544e8a26f3\r\nTimestamp: 2016-09-14 13:38:03Z","error_codes":[70002,50012],"timestamp":"2016-09-14 13:38:03Z","trace_id":"9a146f0d-e6ba-4de3-ad4a-0855405c2c1","correlation_id":"accd351e-4172-4dc7-af87-a8544e8a26f3"}

Those settings can be found under OA > Applications > Azure > Instance > Configuration tab.


Regenerate and configure the secret key as per Creating 'Azure CSP' Application Instance.

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