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Frequent Visitor

## Checking conversions using patient names

Hi everyone

This seems so basic but it's getting the best of me. I'm trying to track conversions on all our marketing contact forms against our internal new patient records. The only field to compare unfortunately is name (which I realise will have a margin of error). I can't seem to link these values relationship wise so I was thinking a lookup could potentially work. Any assistance would be greatly appreciated. Thanks.

5 REPLIES 5
Microsoft Employee

Hi @peekayza ,

In this situation I would create a table that has all the Name values from the other tables (which would be your lookup table or dimension table), de-duplicated. Then you can join that to the other tables (New Patients, SS Contact Form, GDC Contact Form).

Modeling -> New Table:

Names =
DISTINCT (
UNION (
UNION ( DISTINCT ( Fact1[first_name] ), DISTINCT ( Fact2[first_name] ) ),
DISTINCT ( Fact3[first_name] )
)
)

(You can also create the Names table in Power Query too, which is a better option if you have millions of rows).

Relationships:

Make sure it's 1:Many from Names to the other tables.

Measures:

In Fact 1 = COUNTROWS(Fact1)
In Fact 2 = COUNTROWS(Fact2)
In Fact 3 = COUNTROWS(Fact3)

In Fact 1 and Fact 2 % of Fact 1 =
DIVIDE (
SUMX ( Names, IF ( [In Fact 1] = 1 && [In Fact 2] = 1, 1, BLANK () ) ),
[In Fact 1]
)

(you could even change this to >=1 if you have multiple matches by name)

Output:

Here I can see of the 25 people in Fact 1, only 1 is in Fact 2, or 4% of Fact 1.

I've attached a PBIX with this set up for you to look at.

Hope this helps!

Respectfully,
Zoe Douglas (DataZoe)

See my reports and blog at https://www.datazoepowerbi.com/

Frequent Visitor

Thank you so much! I will look at this right away and report back soonest. Does it make a difference that my name field is both first and last name combined?

Microsoft Employee

@peekayza No, it doesn't make a difference. You want to try and make it as identifying as possible so it's best to keep the first name and last name together.

Respectfully,
Zoe Douglas (DataZoe)

See my reports and blog at https://www.datazoepowerbi.com/

Frequent Visitor

Hi @DataZoe

Just checking in if you'd seen my latest update here. Many thanks.

Frequent Visitor

Hi Zoe

Thanks again for your help and patience. So I think I took it a slightly different approach to you. I am wanting to check conversions per brand (TDIC, GDC and SS) against the new patients table names.

So as first step I've managed to merge all the GDC names into a single conversions table with names. What I am struggling with is the next step of comparing it against the new patient names. I just can't see any easy way to bring the name in from that table. I tried this step below. Any assistance would be appreciated thanks.

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