Power BI Embedded - RLS REST API ERROR: Creating embed token with multiple identities

Hi there,

I'm receiving following error when trying to get token to embed report and passing identities for RLS.

error: Creating embed token with multiple identities is not supported

example: Retail Analysis example, reference: https://docs.microsoft.com/en-us/power-bi/developer/embedded-row-level-security

api used: https://api.powerbi.com/v1.0/

settings JSON: 

settings = {"accessLevel": "View",
"identities": [
{
"username": "Andrew Ma",
"roles": "District Manager",
"datasets": "datasetid"
}
]
}

Any help would be appreciated?

v-chuncz-msft

Thanks,

Ranbeer