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Concatinate Array Output to String

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Posted on by golfnutt82

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I need to build a string from an array.
Here is what I am trying to achieve.
The field for this particular item is Product Summary.

It holds the ID, Title and Quantity

Those values come from Products Ordered list.

I convert the ID integer to a string. Then I use a filter query to only get the product orders where the OrderID is eq to the value in Get String Out compose action.

From the array I need the four values concatinated as shown in the beginning

There could be 1 or more product orders for an OrderID

When I do a join I get this mess.

Any direction is appreciated

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grantjenkins 11,059 Moderator on at

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Re: Concatinate Array Output to String

From looking at what you're trying to do, I would suggest building up the items within a Select, Joining the Select output, then sending in email (assuming you want to send via email).

See full flow below. I'll go into each of the actions. Note that I didn't include the filtering on the items from the SharePoint List - I just added four items as an example.

Get items retrieves the items from my list.

Select uses the output (value) from Get items, and concatenates the items as per your requirement. Note that Map is set to Text mode (see screenshot below). The expression used to concatenate the items is below.
concat('Id: ', item()?['ID'], ' - Title: ', item()?['Title'], ' - Quantity: ', item()?['QTY'])

Join then takes the output from the Select and joins each item with a <br> tag so they wrap onto a new line in the email.

Send an email includes the output from Join.

And the email received.

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grantjenkins 11,059 Moderator on at

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Re: Concatinate Array Output to String

So, I was thinking, and thought that maybe a better option would be to use an HTML table. Not sure if this is actually what you're looking for, but thought I'd build a sample anyway just in case 🙂

See full flow below. I'll go into each of the actions.

Get items retrieves the items from my list.

Create HTML table uses the output (value) from Get items and maps out each of the fields you want to display in your table. You can add whatever fields you want to display here.

Compose HTML Style adds some CSS so the table looks a bit nicer in the email. The CSS used is:
<style> table { border-collapse: collapse; } table td, table th { border: 1px solid #ddd; padding: 6px 20px; text-align: left; } table th { background-color: #1C6EA4; color: white; } </style>

Send an email includes the output from both Compose Table Style and Create HTML table.

And the email received.

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golfnutt82 1,360 on at

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Re: Concatinate Array Output to String

Hello Grant,
This is great information and will definately use this when emailing the person who submitted the order.
When I created an Update Item action and attempted to paste the Join in the Order Summary field it doesnt format the same as the output in the email.
Here is what it looks like:

Do you know if there is a way to format this the way I need it and remove the break tags?
I found this Solved: Formatting for a compose output - Power Platform Community (microsoft.com)
But that looks like over kill.
What are your thoughts?

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grantjenkins 11,059 Moderator on at

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Re: Concatinate Array Output to String

Directly after the Select from before that concatenated the data, you can add your Update item and use the following expression to join the lines separated with a new line character.

//Note that decodeUriComponent('%0A') refers to a new line character join(body('Select'), decodeUriComponent('%0A'))

This would give you the following output in your list item.

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grantjenkins 11,059 Moderator on at

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Re: Concatinate Array Output to String

The solution in that link (below) you provided was crazy. They could have achieved the same result in 2-3 actions 🙃

Solved: Formatting for a compose output - Power Platform Community (microsoft.com)

If you're interested, this is how I would have written the flow to get what they were after. Full flow below.

List group members retrieves the members from the group specified.

Select user the output from List group members and maps the concatenation of relevant properties. The expression used is:
concat(item()?['displayName'], ' - ', item()?['jobTitle'])

Join then joins each of the items with a new line character. Join with uses the following expression for new line.
decodeUriComponent('%0A')

Running the flow, we get the following output.

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golfnutt82 1,360 on at

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Re: Concatinate Array Output to String

Hi Grant,
Yep, with your help I was able to use the following.

From my Get Items action I used your concat function.
I then passed that to a Join and used a "-" delimiter.
I then passed the output of the Join to a variable wich I used the the Order Summary field.

I passed the results from the Append to string variable to an Update Item action and get the following.

Thank you again for your help.
I will use your solution when I need to show the data in an email.

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golfnutt82 1,360 on at

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Re: Concatinate Array Output to String

Just noticed the

decodeUriComponent('%0A')

Im going to see how this works with my join to get rid of the hyphen.

5 minutes later...
It worked great, thank you!

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