Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

July 7 - July 17 | Round 2 of the Power BI Dataviz World Championships. Don't miss your chance! Learn more

Reply
Syndicate_Admin
Administrator
Administrator

Unable to link Dataverse and SQL Server tables within Dataflows

Hello!

 

I am trying to link a Dataverse table to a SQL Server table in a Dataflow Mashup. 

 

Dataflows which contain only Dataverse tables work fine. Dataflows which contain only SQL Server tables work fine. So I am confident there isn't an issue with our Data Gateway, or permissions, etc. 

 

However, if I try to connect Dataverse as a data source to a Dataflow which already contains SQL Server tables, I receive the following error:

An exception occurred: 2 arguments were passed to a function which expects 1. (Session ID: d6cf1fe5-5338-4801-b421-8d63232da0a9, Region: uk)

 

If I do it the other way round (i.e. add SQL Server tables to a Dataflow which previously only included Dataverse tables), tables from both data sources are listed in the Queries panel on the left. However,  as soon as I try to link them, I receive the following error: 

"2 arguments were passed to a function which expects 1."

 

Has anyone come across this before? Or have any suggestions? 

 

Best regards, 

Ryan

 

2 REPLIES 2
Syndicate_Admin
Administrator
Administrator

Thank you Stephen. 

Upgrading the Gateway to the latest version (3000.122.8 - April 2022) appears to have done the trick. 

 

Best regards, 

Ryan

Anonymous
Not applicable

Hi @ryan_L,

 

Please upgrade the gateway to the latest version and try connecting again.

Also you could refer to the following similar posts:

networking - Power BI Query Error - Expression.Error: 2 arguments were passed to a function which ex...

[Expression.Error] 2 arguments were passed to a function which expects 1

 

 

 

Best Regards,

Stephen Tao

 

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Helpful resources

Announcements
FabCon and SQLCon Barcelona 2026

FabCon & SQLCon – Barcelona 2026

Join us in Barcelona for FabCon and SQLCon, the Fabric, Power BI, SQL, and AI community event. Save €200 with code FABCMTY200.

60 days of Data Days Carousel

Data Days 2026

Join Data Days 2026: 60 days of free live/on-demand sessions, challenges, study groups, and certification opportunities.

Power BI DataViz World Championships carousel

Power BI DataViz World Championships - June 2026

A new Power BI DataViz World Championship is coming this June! Don't miss out on submitting your entry.