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naijacoder1
Regular Visitor

How to use Concat function when there are empty values (I have 3 fields and I don't want to concat then when empty)

Hi All,
I have around 3 fields from a sharepoint list e.g returning "Boy", "Girl", "Daddy".
I would like to have then concatenated into a single field like so Boy.Girl.Daddy  - FYI i also need the dot in that format

If for example a value is empty let's say Girl it should be Boy.Daddy

Any idea how I can achieve this using power automate?

 

Thanks

1 ACCEPTED SOLUTION

Accepted Solutions
v-yujincui-msft
Community Support
Community Support

Hi @naijacoder1 ,

 

I have made a simple test for your reference.

 

concat(if(empty(items('Apply_to_each')?['ColumnA']),'',concat(items('Apply_to_each')?['ColumnA'],'.')),if(empty(items('Apply_to_each')?['ColumnB']),'',concat(items('Apply_to_each')?['ColumnB'],'.')),if(empty(items('Apply_to_each')?['ColumnC']),'',items('Apply_to_each')?['ColumnC']))
if(equals(slice(outputs('Compose'),add(length(outputs('Compose')),-1)),'.'),substring(outputs('Compose'),0,add(length(outputs('Compose')),-1)),outputs('Compose'))

 

vyujincuimsft_0-1663651740794.png

Result Screenshot:

vyujincuimsft_1-1663651787325.png

 

 

Best Regards,

Charlie Choi

View solution in original post

8 REPLIES 8
v-yujincui-msft
Community Support
Community Support

Hi @naijacoder1 ,

 

I have made a simple test for your reference.

 

concat(if(empty(items('Apply_to_each')?['ColumnA']),'',concat(items('Apply_to_each')?['ColumnA'],'.')),if(empty(items('Apply_to_each')?['ColumnB']),'',concat(items('Apply_to_each')?['ColumnB'],'.')),if(empty(items('Apply_to_each')?['ColumnC']),'',items('Apply_to_each')?['ColumnC']))
if(equals(slice(outputs('Compose'),add(length(outputs('Compose')),-1)),'.'),substring(outputs('Compose'),0,add(length(outputs('Compose')),-1)),outputs('Compose'))

 

vyujincuimsft_0-1663651740794.png

Result Screenshot:

vyujincuimsft_1-1663651787325.png

 

 

Best Regards,

Charlie Choi

Sundeep_Malik
Multi Super User
Multi Super User

Hey @naijacoder1 

I was able to solve your problem. Though my method is pretty long. There could be shorted methods too.

Here is the Input:

Sundeep_Malik_0-1663651737360.png

Here is the final Output:

Sundeep_Malik_1-1663651755702.png

I firstly initialized an array with your input.Then created a new array of array and after that made an empty string variable.

Sundeep_Malik_2-1663651889947.png

Then used an apply to each method, and passed the variable A in it. And then matched each item with the empty variable. If its not empty I am just appending it to the Array variable B.

Sundeep_Malik_3-1663651954882.png

After this I stored the above array in a compose and made another variable called FinalOutput.

Sundeep_Malik_4-1663651996750.png

 

Then I used another apply to each method and passed variable B in it.

And appended the current item in the final output string with a dot at the end.

After that I used another compose to remove the last dot from output. Actually I am getting Boy.Daddy., to remove the last dot I am using the substring method.

It formula:

substring(variables('FinalOutput'),0,sub(length(variables('FinalOutput')),1))
 

Sundeep_Malik_5-1663652061751.png

I hope this helps.

Thanks Charlie for the help.
I will give it a shot and let you know

Hi Charlie,
Sorry but unfortunately i'm getting this error below .

naijacoder1_0-1663720858462.png

 

v-yujincui-msft
Community Support
Community Support

Hi @naijacoder1 ,

 

Could you please provide some screenshots of your Flow setting? That will make it much easier to assist.

 

The Outputs of the first Compose Action should be a string.

vyujincuimsft_0-1663724462572.png

 

 

Best Regards,

Charlie Choi

Thanks Charlie .I will do that soon

Please see below

I need help with Compose 2

naijacoder1_0-1663753754524.png

Thanks

 

v-yujincui-msft
Community Support
Community Support

Hi @naijacoder1 ,

 

Based on the screenshot you provided, the first Compose Action seems to return the expected result.

The expression in the second Compose Action is to determine whether there are extra dots at the end of the string that need to be removed.

Could you please tell me what is the problem you are currently encountering? Is there any other error message.

 

 

Best Regards,

Charlie Choi

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