This article explains how to pass an array attribute in the user profile when calling the identity-sources bulk-upsert method.

For example:

{
    "entityType": "USERS",
    "profiles": [
        {
            "externalId": "user1@example.com",
            "profile": {
                "userName": "user1@example.com",
                "firstName": "user1",
                "lastName": "user1",
                "email": "user1@example.com",
                "stringArray": ["test1","test2","test3"]
            }
        }
    ]
}

Passing "stringArray": ["test1","test2","test3"]  results in the following error:

400 Bad Request 

The request body was not well-formed

• Identity Source
• Bulk-Upsert
• Okta Classic Engine
• Okta Identity Engine (OIE)

To resolve this, follow the steps below:

1. Pass the variable as a comma-delimited string, then in the profile mappings convert it to an array.
   • The "USERS" array would look something like this in the API call:

     {
         "entityType": "USERS",
         "profiles": [
             {
                 "externalId": "user1@example.com",
                 "profile": {
                     "userName": "user1@example.com",
                     "firstName": "user1",
                     "lastName": "user1",
                     "email": "user1@example.com",
                     "stringArray": "test1,test2,test3"
                 }
             }
         ]
     }

2. In the profile mappings for the Custom Identity Source profile, use the following expression to convert the string to an array when mapping it to the Okta user attribute:

   Arrays.flatten(appuser.stringArray)