This is best Fabric, Power BI, SQL and AI community event. How do we know? The last event sold out! Save €200 with code FABCMTY200.
Register nowA new Data Days event is coming soon! This time we’re going bigger than ever. Fabric, Power BI, SQL, AI and more. Don't miss out.
I have a dataflow where I would like to combine 2 tables from 2 different datasources with a merge query (merge as new), however I keep getting errors with the connections.
Here is the situation:
Both tables share a same column where I would like to execute a merge query (join left-anti) into a new table (Table C).
This is the result:
If I merge the other way around I get this:
I have the "Allow combining data from multiple datasources....." checked, but this doesn't change anything.
Is it simply not possible to do this or am I missing something?
Thanks!
where I would like to combine 2 tables from 2 different datasources with a merge query
Don't do that, especially not in a dataflow. Leave the tables alone and combine them in the Power BI data model of the dataset that consumes the dataflow.
What is your reasoning for pulling Dataverse information into a dataflow?
Check out the May 2026 Power BI update to learn about new features.
Sign up to receive a private message when registration opens and key events begin.
If you have recently started exploring Fabric, we'd love to hear how it's going. Your feedback can help with product improvements.
| User | Count |
|---|---|
| 4 | |
| 3 | |
| 2 | |
| 1 | |
| 1 |
| User | Count |
|---|---|
| 7 | |
| 6 | |
| 6 | |
| 6 | |
| 4 |