Deploy Microsoft.Web/serverfarms function app InternalServerError

Tore Paulsson 31 Reputation points

Since Friday October 1 we've experienced issues with deployments of our service plan.

"status": "Failed",
"error": {
"code": "InternalServerError",
"message": "There was an unexpected InternalServerError. Please try again later. x-ms-correlation-request-id: bfbe09b0-b1bb-4578-9c2a-ac167ec06905"

Azure Functions
Azure Functions
An Azure service that provides an event-driven serverless compute platform.
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Azure App Service
Azure App Service
Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
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Accepted answer
  1. RM 96 Reputation points

    We've been experiencing the same problem.

    Incremental ARM re-deployments of App Plans to the UK South region have been failing with the error above since Friday Oct 01. I can only get the deployment to succeed if I delete the existing App Plan first and then retry.
    These deployments have been running fine before for at least a month.

    Here is an example of the template being pushed (generated from Bicep):

              "type": "Microsoft.Web/serverfarms",
              "apiVersion": "2021-01-15",
              "name": "[take(variables('appServicePlanName'), 40)]",
              "location": "[parameters('location')]",
              "tags": {
                "org": "[parameters('org')]",
                "env": "[parameters('env')]",
                "proj": "[parameters('proj')]"
              "sku": {
                "name": "[parameters('appPlanSkuName')]"
              "kind": "app",
              "properties": {
                "perSiteScaling": false,
                "elasticScaleEnabled": false,
                "maximumElasticWorkerCount": 1,
                "isSpot": false,
                "reserved": false,
                "targetWorkerCount": 0,
                "targetWorkerSizeId": 0

    And the raw error:

      "code": "DeploymentFailed",
      "message": "At least one resource deployment operation failed. Please list deployment operations for details. Please see for usage details.",
      "details": [
          "code": "InternalServerError",
          "message": "There was an unexpected InternalServerError.  Please try again later.  x-ms-correlation-request-id: 65b9766b-f87f-40a8-8fa1-e7bec7e4fea9"

1 additional answer

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  1. ajkuma 24,566 Reputation points Microsoft Employee

    @Tore Paulsson , / @RM ,

    Our product engineering team has identified an issue and are actively working on rolling out a fix.

    Are you leveraging consumption plan or some other App Service Plan (ASP)? Kindly try switching to another ASP and then re-try. On which region are you provisioning the App?

    Once again, we regret the inconvenience that this issue has caused. I’m constantly following up internally and will post back as soon as I have more update and want to ensure that we deliver the support you expect.