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

The Power BI Data Visualization World Championships is back! Get ahead of the game and start preparing now! Learn more

Reply
Seb__187
Frequent Visitor

Table.Combine-Function doesnt recognize parameter values as table but as string

Hello everyone,

 

I have different tables which were combined by the Table.Combine-Function. That works properly.

Now i want to make this dynamic in order to easily add or remove some of the tables if neccessary.

Therefore I tried to create a Parameter which contains the names of the tables which should be combined.

 

But unfortunately they Table.Combine-Function recognizes the names of the tables as strings and not as tables and is therefore not able to process the input.

I always get an Expression.Error the value couldnt be transformed into a table.

 

Does anybody know how to fix this?

 

Thank you in advance!

 

 

 

2 REPLIES 2
Vijay_A_Verma
Super User
Super User

See below an example of a single table.

let
    T = Expression.Evaluate(Param, #shared),
    Source = Table.Combine({t1,T})
in
    Source

I need to see what does your parameter contain in case of multiple tables

Thank you for your reply!

My parameter contains for example "Table_A, Table_B, Table_C, ..." 

The Table.Combine-Function looks like Table.Combine({#"prior step", Parameter}) 

 

Then the error message the value ""Table_A, Table_B, Table_C"" couldnt be converted into typ table appears. Details value=Table_A, Table_B, Table_C

Type=[Type]

Helpful resources

Announcements
Power BI DataViz World Championships

Power BI Dataviz World Championships

The Power BI Data Visualization World Championships is back! Get ahead of the game and start preparing now!

December 2025 Power BI Update Carousel

Power BI Monthly Update - December 2025

Check out the December 2025 Power BI Holiday Recap!

FabCon Atlanta 2026 carousel

FabCon Atlanta 2026

Join us at FabCon Atlanta, March 16-20, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.