API - Update Datasources In Group for Paginated Reports - Unauthorized

[DavidPi]

Hello,

I try to update RDL report data source via API (using service principal).

{
"updateDetails": [
{
"datasourceName": "JIRADB",
"connectionDetails": {
"server": "SQLBIP1DP1",
"database": "COGNOS_REPORTING"
}
}
]
}

And I receive this return message:

{
"error": {
"code": "Unauthorized",
"message": "Update datasource JIRADB is unauthorized"
}
}

I can not find solution. Service principal is admin in workspace. 

But I can not set service principal as owner on data gateway data source (error msg no email address) - is this the problem?

[v-shex-msft]

Hi @DavidPi,

AFAIK, update dataset should work for power bi reports. If you are work with RDL files, please try to use the update data source API if helps:

Reports - Update Datasources In Group - REST API (Power BI Power BI REST APIs) | Microsoft Learn

Regards,

Xiaoxin Sheng

[DavidPi · Accepted solution]

I found the solution - You first need to call take over API - Reports - Take Over In Group - REST API (Power BI Power BI REST APIs) | Microsoft Learn. Then You can call API to change data source. 

[DavidPi]

Yes, I use this API, but receive message - Update datasource JIRADB is unauthorized.

I do not know which permision I should have more. In Doc I see - 

• The user must be the data source owner

What does this mean? How to set owner of data source in RDL? I am confused.