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
Snowy34
Helper III
Helper III

Lookupvalue issue

Good day all,

 

Just need some help with the below Lookupvalue issue, I have two tables 

 

DOP-055 1 table holds the result I will like to bring over to table DOP-055 but I get the below error ☹️

 

 

EGPdY4k

 

If anyone could help that would be great thank you,

 

Regards 

Snowy

1 ACCEPTED SOLUTION

Hi @Snowy34 ,

You can create the following calculated column to check if there is a duplicate value in 'DOP-055 1' [Delivery No]:

Duplicate check =
CALCULATE (
    COUNT ( 'DOP-055 1'[Delivery No] ),
    ALLEXCEPT ( 'DOP-055 1', 'DOP-055 1'[Delivery No] )
)

You may need to use FIRSTNONBLANK / LASTNONBLANK, here are some similar resources that might help:

LOOKUPVALUE - "A table of multiple values was supplied where a single value was expected"

Dealing with Duplicates “A Table of Multiple Values was supplied” using DAX

Best Regards,

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

View solution in original post

3 REPLIES 3
parry2k
Super User
Super User

@Snowy34 seems like your table DOP-055 1 contains more than one row for Delivery No. Can you take a look at this?



Subscribe to the @PowerBIHowTo YT channel for an upcoming video on List and Record functions in Power Query!!

Learn Power BI and Fabric - subscribe to our YT channel - Click here: @PowerBIHowTo

If my solution proved useful, I'd be delighted to receive Kudos. When you put effort into asking a question, it's equally thoughtful to acknowledge and give Kudos to the individual who helped you solve the problem. It's a small gesture that shows appreciation and encouragement! ❤


Did I answer your question? Mark my post as a solution. Proud to be a Super User! Appreciate your Kudos 🙂
Feel free to email me with any of your BI needs.

hi @parry2k 

That is the funny part it doesn't :S 

 

Regarsd 

Hi @Snowy34 ,

You can create the following calculated column to check if there is a duplicate value in 'DOP-055 1' [Delivery No]:

Duplicate check =
CALCULATE (
    COUNT ( 'DOP-055 1'[Delivery No] ),
    ALLEXCEPT ( 'DOP-055 1', 'DOP-055 1'[Delivery No] )
)

You may need to use FIRSTNONBLANK / LASTNONBLANK, here are some similar resources that might help:

LOOKUPVALUE - "A table of multiple values was supplied where a single value was expected"

Dealing with Duplicates “A Table of Multiple Values was supplied” using DAX

Best Regards,

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

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.