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
cte_crest
Helper I
Helper I

Can we retain the data in the table, and add newly fetched data through refresh in custom connector?

Hi folks, I am thinking to develop a custom connector, in which I fetch the data through API. My use case is to keep on adding the data to the table. 

 

So, is that supported in Power BI custom connectors/template apps? I suppose, currently, whenever I press refresh, the data is deleted from the dataset and all the data is fetched again. 

 

Is that correct? Or I am getting it wrong?

2 REPLIES 2
Greg_Deckler
Community Champion
Community Champion

https://www.thebiccountant.com/2017/01/11/incremental-load-in-powerbi-using-dax-union/


Follow on LinkedIn
@ me in replies or I'll lose your thread!!!
Instead of a Kudo, please vote for this idea
Become an expert!: Enterprise DNA
External Tools: MSHGQM
YouTube Channel!: Microsoft Hates Greg
Latest book!:
DAX For Humans

DAX is easy, CALCULATE makes DAX hard...

@Greg_Deckler 

I think this approach will only work on Power BI desktop and is still isn't supported on Power BI service. Right?

 

Also, if I have a large dataset (Around 2.5 Million events daily fetched through API), do you suggest that I could leverage this approach?

Helpful resources

Announcements
November Power BI Update Carousel

Power BI Monthly Update - November 2025

Check out the November 2025 Power BI update to learn about new features.

Fabric Data Days Carousel

Fabric Data Days

Advance your Data & AI career with 50 days of live learning, contests, hands-on challenges, study groups & certifications and more!

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.