Create an external data model in a data model

Available since Strategy ONE (January 2026)

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You can try out this workflow at REST API Playground.

Learn more about Strategy REST API Playground here.

This workflow sample demonstrates how to create an external data model in a data model through the Modeling service.

info

Get the authorization token needed to execute the request with POST /api/auth/login.

Get the project ID from GET /api/projects.

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Changesets are used in this workflow. For information on how to create and use changesets, see Changesets.

You can create an external data model in a data model using the following endpoint: POST /api/model/dataModels/{dataModelId}/externalDataModels.

Sample Request Header:

"accept": "application/json"
"X-MSTR-AuthToken": "o0ak9privdo27nfo798j40m8aa"
"X-MSTR-MS-Changeset": "805C5F3FB78A436FAE37C943471C24AD"

Sample Request Body:

{
  "baseDataModel": {
    "objectId": "FF2970B298464D88806CCD39F1BA1919",
    "subType": "report_emma_cube",
    "name": "data model 1"
  },
  "alias": "external data model 1"
}

Sample Curl:

curl -X POST "https://demo.microstrategy.com/MicroStrategyLibrary/api/model/dataModels/04DCF4F028354FC0AE4B8120CB1983A6/externalDataModels" -H "accept: application/json" -H "X-MSTR-AuthToken: o0ak9privdo27nfo798j40m8aa" -H "X-MSTR-MS-Changeset: 805C5F3FB78A436FAE37C943471C24AD" -H "Content-Type: application/json" -d '{"baseDataModel":{"objectId":"FF2970B298464D88806CCD39F1BA1919","subType":"report_emma_cube","name":"data model 1"},"alias":"external data model 1"}'

Sample Response Body:

{
  "id": "AE2FC8E446B14162BF2BCAC64981D5A2",
  "baseDataModel": {
    "objectId": "FF2970B298464D88806CCD39F1BA1919",
    "subType": "report_emma_cube",
    "name": "data model 1"
  },
  "alias": "external data model 1",
  "objects": [
    {
      "objectId": "2877DDA7059B4FFE9DE2711F4D7CD29A",
      "subType": "attribute",
      "name": "Customer",
      "hidden": false,
      "alias": "Customer (2)"
    },
    {
      "objectId": "B44A2F49F6B6441796FCA511F1BBFDA5",
      "subType": "attribute",
      "name": "Churn",
      "hidden": false,
      "alias": ""
    },
    {
      "objectId": "3FDFCCEFB640428E9341D45B68073601",
      "subType": "attribute",
      "name": "Lifetime Value Score",
      "hidden": false,
      "alias": ""
    }
  ]
}

Response Code: 201 (A new external data model is created successfully in the changeset.)