On Premises Data Gateway and SharePoint On Premises with FBA authentication enabled issue

[Mirkos]

Hi all,
I have an issue when i try to connect my SharePoint on premises with Microsft Flow's flow.
This is My Envirorment:
SharePoint 2016 On Prmises with FBA authentication enabled;
On Premises Data Gateway v 14.16.6808.1 (sept. 2018);
Microsoft Flow's flow;

The focus of my project it's copy the data from an Excel table shared via OneDrive for business and paste the data in a SharePoint list.

When i try to debug my flow it's returns this error when flow try to connect to SharePoint by On Premises Data Gateway:
Code 502
Message: BadGateway
Received error payload from gateway service with ID 827355: Error parsing UserName '<PI>adminGDPRsp</PI>'..\r\nclientRequestId:eb5d1a4e-2f76-4c3b-a73a-e303dbf26d74"

The office 365 user registered on the gateway is a local administrator on the server and a site collection administrator on SharePoint.

What's wrong?

It's the first time that i find this error, it's possible that the connection from SharePoint OnPrem and On Premises data Gateway don't work when Form Based Authentication is enabled?

Thanks
Mirko

[v-yamao-msft · Accepted solution]

Hi @Mirkos,

Thanks for feedback. I am afraid that it is a feature that has not been supported yet. I have seen a similar request on Flow Ideas Forum, please vote and comment the idea at here:

https://powerusers.microsoft.com/t5/Flow-Ideas/Microsoft-Flow-on-Onpremise-Enviroment-with-FBA-and-C... 

Best regards,

Mabel Mao