Dax that uses contains in the formula

[ciken]

I am trying to create a report that will show all products within an order number where one of the items contains the word coupon. I've borrowed some DAX from another thread and when I use this formula with the full product name equals, I get the correct response. But because we use many different coupon codes, I'm trying to write it with the CONTAINS( feature and when I add that behind the && it doesn't work properly. 

What am I doing wrong?

WORKS:

Contains Coupon = VAR inExist=CALCULATE(COUNT('Operations: Orders Shopping Cart'[OrderNumber]),FILTER('Operations: Orders Shopping Cart','Operations: Orders Shopping Cart'[OrderNumber]=EARLIER('Operations: Orders Shopping Cart'[OrderNumber]) && 'Operations: Orders Shopping Cart'[OrderedProductName]="Coupon: epssp-gamer"))

RETURN

IF(inExist>0,"Coupon Applied","No Coupon")

DOESN'T WORK:

Contains Coupon = VAR inExist=CALCULATE(COUNT('Operations: Orders Shopping Cart'[OrderNumber]),FILTER('Operations: Orders Shopping Cart','Operations: Orders Shopping Cart'[OrderNumber]=EARLIER('Operations: Orders Shopping Cart'[OrderNumber]) && CONTAINS('Operations: Orders Shopping Cart','Operations: Orders Shopping Cart'[OrderedProductName],"Coupon")))

IF(inExist>0,"Coupon Applied","No Coupon")

[az38]

hi @ciken 

i dont completely understand.

does it work with CONTAINS or with equal?

Anyway, I think it shouldnt work with CONTAINS, because CONTAINS is aboout whole table.

for row-by-row comparision you should use SEARCH https://docs.microsoft.com/en-us/dax/search-function-dax or FIND https://docs.microsoft.com/en-us/dax/find-function-dax functions (the difference is in case-sensitivity)

do not hesitate to give a kudo to useful posts and mark solutions as solution

LinkedIn

[az38]

@ciken 

try

Contains Coupon = VAR inExist=CALCULATE(COUNT('Operations: Orders Shopping Cart'[OrderNumber]),FILTER('Operations: Orders Shopping Cart','Operations: Orders Shopping Cart'[OrderNumber]=EARLIER('Operations: Orders Shopping Cart'[OrderNumber]) && SEARCH("coupon",'Operations: Orders Shopping Cart'[OrderedProductName])>0))
RETURN
IF(inExist>0,"Coupon Applied","No Coupon")

do not hesitate to give a kudo to useful posts and mark solutions as solution

[ciken]

Results in Error message: (The search Text producted to function 'SEARCH' could not be found in the given text.)

[az38 · Accepted solution]

@ciken 

try

Contains Coupon = VAR inExist=CALCULATE(COUNT('Operations: Orders Shopping Cart'[OrderNumber]),FILTER('Operations: Orders Shopping Cart','Operations: Orders Shopping Cart'[OrderNumber]=EARLIER('Operations: Orders Shopping Cart'[OrderNumber]) && SEARCH("coupon",'Operations: Orders Shopping Cart'[OrderedProductName],,0)>0))
RETURN
IF(inExist>0,"Coupon Applied","No Coupon")