cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
fernandosilva
Super User
Super User

Append to String Variable Not Working

Hi all,

 

I'm building a flow coming from an action in Power Virtual Agent that get the data of the customer and display on the chatbot.

The first block is the "Get Row" where I connect to the database, table name and row.

 

Until that point is fine, so after that I use the "Initialize variable" to store the data and the "Append to string variable".

The latest is not working as the dropdown is blank and I cannot place a name manually. When I click on the arrow down, nothing comes up and I can't fill up the "Name" field.

 

See screenshot below:

2022-01-17 14.48.43 emea.flow.microsoft.com b9b5113e31f9.png

 

Any help with that would be great.

 

Also, after that step, how do I get the data from the variable and show it on the chatbot from Power Virtual Agent?

 

That will also be a great help if someone can do it.

 

Kind regards,

 

Fernando

13 REPLIES 13
Pstork1
Most Valuable Professional
Most Valuable Professional

Can you show a screenshot of the Initialize Variable action for the variable you are trying to reference?  Also a screenshot showing where it is in the flow in relationship to the append action.



-------------------------------------------------------------------------
If I have answered your question, please mark your post as Solved.
If you like my response, please give it a Thumbs Up.
fernandosilva
Super User
Super User

HI @Pstork1 ,

 

See screenshot below.

2022-01-17 15.14.47 emea.flow.microsoft.com 0890d2deaad8_LI.jpg

 

The Append to string variable is faulty as I can't write a name manually, but also when pressing the arrow-down, it's all blank.

 

 

If you need more info, please let me know.

 

I know these Microsoft tools are quite new and I'm a newbie, so Microsoft tutorials are not fully helpful.

 

Any help would be great.

Pstork1
Most Valuable Professional
Most Valuable Professional

The problem is you initialize the variable as an array but want to append to a string.  Either change the initialize to a string variable or use the append to array action.  Do you want the variable to be an array or a string when you are done?



-------------------------------------------------------------------------
If I have answered your question, please mark your post as Solved.
If you like my response, please give it a Thumbs Up.

Hi @Pstork1 ,

 

The final data would a string, so I changed to string.

Now, on the "Append string to variable" dropdown, the name of the variable created above is showing up. Is that the name that I need? I don't know as the value is the same of the name.

 

2022-01-17 15.41.52 emea.flow.microsoft.com 1fa88bc317a6.png

Quite frustrating. 

Pstork1
Most Valuable Professional
Most Valuable Professional

You pick the name of the variable you want to append to in the dropdown.  The value should be whatever value it is that you want to append.  Right now you are trying to append an empty string variable to itself, so I doubt that is what you want.  I assume what you want is to append some value from the SQL rows that you retrieved.



-------------------------------------------------------------------------
If I have answered your question, please mark your post as Solved.
If you like my response, please give it a Thumbs Up.

Hi @Pstork1 ,

 

I managed to get it right.

Now, when I'm on the chatbot and i want to display a message with the value of the variable, the chat keeps in a loop. I guess that is another subject... 😕 ....frustration....

That's the point the data is not passing through:

2022-01-17 16.45.12 emea.flow.microsoft.com 843f258b7c1c.png

 

No idea why is not passing through.

Pstork1
Most Valuable Professional
Most Valuable Professional

As a troubleshooting measure, try adding a compose that contains the value you are appending to the string variable right before you append it inside the loop.  Then after a run you'll be able to see what the actual value was that was being appended to the string.

 

Also, your original screenshot shows a Return value to PVA action, but there is no data in it.  Make sure you add the variable to that or it won't return anything.  When you get back to the bot you can display the returned value in a message.



-------------------------------------------------------------------------
If I have answered your question, please mark your post as Solved.
If you like my response, please give it a Thumbs Up.

Hi @Pstork1 ,

 

I have done it all.

Can't get my head around these blocks.

I could easily do the same process with gulp and an Ajax call to the server, but as I need to connect to PVA, this is my only way to do it and I can't get the value to show on PVA or even the flow to work properly.

Microsoft tutorials are not really helpful and they seemed to think everyone is a developer and knows all the languages, which is why they advertise the PVA for non developers...lol

 

As soon as I make one value to pass through PVA, I'm happy, so I can make all the data I need to pass through.

 

This is my latest set up.

 

2022-01-18 10.10.28 emea.flow.microsoft.com 43a66abbb28d.png

Pstork1
Most Valuable Professional
Most Valuable Professional

I had meant to put the Compose inside the same Apply to Each loop as the Append to String, but your current setup should also work.  When you look at a previous run how many loops are the Apply to each making?  What values are you seeing in the Compose loop?  What does the string being returned to PVA contain?  What issue are you having?

 

I'll be happy to help, but your setup looks like it should work.



-------------------------------------------------------------------------
If I have answered your question, please mark your post as Solved.
If you like my response, please give it a Thumbs Up.

Hi @Pstork1 ,

 

What I'm trying to achieve:

 

I'm creating a flow from Power Virtual Agent for a Insurance company and when the customer place their policy number I want to retrieve the Policy from the sql database with the following details:

Policy Number

Full name

Email

Phone number

Package (insurance package)

 

After retrieve the data from the sql server, I want to display on the chat bot.

 

I know that if I can retrieve one single data, the other ones are gonna be easier.

 

As I'm new to Power Automate, I'm struggling to pass a single data for now hehe.

Pstork1
Most Valuable Professional
Most Valuable Professional

So when you look at a previous run of the flow what are you seeing as values in the Compose statements in the Apply to each loop?  Is it showing Policy numbers?  And are they being appended to the string variable?



-------------------------------------------------------------------------
If I have answered your question, please mark your post as Solved.
If you like my response, please give it a Thumbs Up.

@Pstork1 

 

Hi there, I managed to make it work initializing the variable before the server request, adding the compose block and the parse jason block before adding to a string variable and returning that variable to PVA. 

 

I works better with HTTP as I'm doing an api call.

 

Thank you for all your support.

 

2022-01-24 09.16.13 emea.flow.microsoft.com c42448e8a74d.png

Helpful resources

Announcements

Win free tickets to the Power Platform Conference | Summer of Solutions

We are excited to announce the Summer of Solutions Challenge!    This challenge is kicking off on Monday, June 17th and will run for (4) weeks.  The challenge is open to all Power Platform (Power Apps, Power Automate, Copilot Studio & Power Pages) community members. We invite you to participate in a quest to provide solutions to as many questions as you can. Answers can be provided in all the communities.    Entry Period: This Challenge will consist of four weekly Entry Periods as follows (each an “Entry Period”)   - 12:00 a.m. PT on June 17, 2024 – 11:59 p.m. PT on June 23, 2024 - 12:00 a.m. PT on June 24, 2024 – 11:59 p.m. PT on June 30, 2024 - 12:00 a.m. PT on July 1, 2024 – 11:59 p.m. PT on July 7, 2024 - 12:00 a.m. PT on July 8, 2024 – 11:59 p.m. PT on July 14, 2024   Entries will be eligible for the Entry Period in which they are received and will not carryover to subsequent weekly entry periods.  You must enter into each weekly Entry Period separately.   How to Enter: We invite you to participate in a quest to provide "Accepted Solutions" to as many questions as you can. Answers can be provided in all the communities. Users must provide a solution which can be an “Accepted Solution” in the Forums in all of the communities and there are no limits to the number of “Accepted Solutions” that a member can provide for entries in this challenge, but each entry must be substantially unique and different.    Winner Selection and Prizes: At the end of each week, we will list the top ten (10) Community users which will consist of: 5 Community Members & 5 Super Users and they will advance to the final drawing. We will post each week in the News & Announcements the top 10 Solution providers.  At the end of the challenge, we will add all of the top 10 weekly names and enter them into a random drawing.  Then we will randomly select ten (10) winners (5 Community Members & 5 Super Users) from among all eligible entrants received across all weekly Entry Periods to receive the prize listed below. If a winner declines, we will draw again at random for the next winner.  A user will only be able to win once overall. If they are drawn multiple times, another user will be drawn at random.  Individuals will be contacted before the announcement with the opportunity to claim or deny the prize.  Once all of the winners have been notified, we will post in the News & Announcements of each community with the list of winners.   Each winner will receive one (1) Pass to the Power Platform Conference in Las Vegas, Sep. 18-20, 2024 ($1800 value). NOTE: Prize is for conference attendance only and any other costs such as airfare, lodging, transportation, and food are the sole responsibility of the winner. Tickets are not transferable to any other party or to next year’s event.   ** PLEASE SEE THE ATTACHED RULES for this CHALLENGE**

Celebrating the June Super User of the Month: Markus Franz

Markus Franz is a phenomenal contributor to the Power Apps Community. Super Users like Markus inspire others through their example, encouragement, and active participation.    The Why: "I do this to help others achieve what they are trying to do. As a total beginner back then without IT background I know how overwhelming things can be, so I decided to jump in and help others. I also do this to keep progressing and learning myself." Thank you, Markus Franz, for your outstanding work! Keep inspiring others and making a difference in the community! 🎉  Keep up the fantastic work! 👏👏 Markus Franz | LinkedIn  Power Apps: mmbr1606  

Copilot Cookbook Challenge | Week 1 Results | Win Tickets to the Power Platform Conference

We are excited to announce the "The Copilot Cookbook Community Challenge is a great way to showcase your creativity and connect with others. Plus, you could win tickets to the Power Platform Community Conference in Las Vegas in September 2024 as an amazing bonus.   Two ways to enter: 1. Copilot Studio Cookbook Gallery:  https://aka.ms/CS_Copilot_Cookbook_Challenge 2. Power Apps Copilot Cookbook Gallery: https://aka.ms/PA_Copilot_Cookbook_Challenge   There will be 5 chances to qualify for the final drawing: Early Bird Entries: March 1 - June 2Week 1: June 3 - June 9Week 2: June 10 - June 16Week 3: June 17 - June 23Week 4: June 24 - June 30     At the end of each week, we will draw 5 random names from every user who has posted a qualifying Copilot Studio template, sample or demo in the Copilot Studio Cookbook or a qualifying Power Apps Copilot sample or demo in the Power Apps Copilot Cookbook. Users who are not drawn in a given week will be added to the pool for the next week. Users can qualify more than once, but no more than once per week. Four winners will be drawn at random from the total qualifying entrants. If a winner declines, we will draw again at random for the next winner.  A user will only be able to win once. If they are drawn multiple times, another user will be drawn at random. Prizes:  One Pass to the Power Platform Conference in Las Vegas, Sep. 18-20, 2024 ($1800 value, does not include travel, lodging, or any other expenses) Winners are also eligible to do a 10-minute presentation of their demo or solution in a community solutions showcase at the event. To qualify for the drawing, templates, samples or demos must be related to Copilot Studio or a Copilot feature of Power Apps, Power Automate, or Power Pages, and must demonstrate or solve a complete unique and useful business or technical problem. Power Automate and Power Pagers posts should be added to the Power Apps Cookbook. Final determination of qualifying entries is at the sole discretion of Microsoft. Weekly updates and the Final random winners will be posted in the News & Announcements section in the communities on July 29th, 2024. Did you submit entries early?  Early Bird Entries March 1 - June 2:  If you posted something in the "early bird" time frame complete this form: https://aka.ms/Copilot_Challenge_EarlyBirds if you would like to be entered in the challenge.   Week 1 Results:  Congratulations to the Week 1 qualifiers, you are being entered in the random drawing that will take place at the end of the challenge. Copilot Cookbook Gallery:Power Apps Cookbook Gallery:1.  @Mathieu_Paris 1.   @SpongYe 2.  @Dhanush 2.   @Deenuji 3.  n/a3.   @Nived_Nambiar  4.  n/a4.   @ManishSolanki 5.  n/a5.    n/a

Your Moment to Shine: 2024 PPCC’s Got Power Awards Show

For the third year, we invite you, our talented community members, to participate in the grand 2024 Power Platform Community Conference's Got Power Awards. This event is your opportunity to showcase solutions that make a significant business impact, highlight extensive use of Power Platform products, demonstrate good governance, or tell an inspirational story. Share your success stories, inspire your peers, and show off some hidden talents.  This is your time to shine and bring your creations into the spotlight!  Make your mark, inspire others and leave a lasting impression. Sign up today for a chance to showcase your solution and win the coveted 2024 PPCC’s Got Power Award. This year we have three categories for you to participate in: Technical Solution Demo, Storytelling, and Hidden Talent.      The Technical solution demo category showcases your applications, automated workflows, copilot agentic experiences, web pages, AI capabilities, dashboards, and/or more. We want to see your most impactful Power Platform solutions!  The Storytelling category is where you can share your inspiring story, and the Hidden Talent category is where your talents (such as singing, dancing, jump roping, etc.) can shine! Submission Details:  Fill out the submission form https://aka.ms/PPCCGotPowerSignup by July 12th with details and a 2–5-minute video showcasing your Solution impact. (Please let us know you're coming to PPCC, too!)After review by a panel of Microsoft judges, the top storytellers will be invited to present a virtual demo presentation to the judges during early August. You’ll be notified soon after if you have been selected as a finalist to share your story live at PPCC’s Got Power!  The live show will feature the solution demos and storytelling talents of the top contestants, winner announcements, and the opportunity to network with your community.  It's not just a showcase for technical talent and storytelling showmanship, show it's a golden opportunity to make connections and celebrate our Community together! Let's make this a memorable event! See you there!   Mark your calendars! Date and Time: Thursday, Sept 19th Location: PPCC24 at the MGM Grand, Las Vegas, NV 

Tuesday Tip | Accepting Solutions

It's time for another TUESDAY TIPS, your weekly connection with the most insightful tips and tricks that empower both newcomers and veterans in the Power Platform Community! Every Tuesday, we bring you a curated selection of the finest advice, distilled from the resources and tools in the Community. Whether you’re a seasoned member or just getting started, Tuesday Tips are the perfect compass guiding you across the dynamic landscape of the Power Platform Community.   To enhance our collaborative environment, it's important to acknowledge when your question has been answered satisfactorily. Here's a quick guide on how to accept a solution to your questions: Find the Helpful Reply: Navigate to the reply that has effectively answered your question.Accept as Solution: Look for the "Accept as Solution" button or link, usually located at the bottom of the reply.Confirm Your Selection: Clicking this button may prompt you for confirmation. Go ahead and confirm that this is indeed the solution.Acknowledgment: Once accepted, the reply will be highlighted, and the original post will be marked as "Solved". This helps other community members find the same solution quickly. By marking a reply as an accepted solution, you not only thank the person who helped you but also make it easier for others with similar questions to find answers. Let's continue to support each other by recognizing helpful contributions. 

Reminder: To register for the Community Ambassador Call on June 13th

Calling all Super Users & User Group Leaders   Reminder: To register for the Community Ambassador Call on June 13th—for an exclusive event for User Group Leaders and Super Users! This month is packed with exciting updates and activities within our community.   What's Happening: Community Updates: We'll share the latest developments and what's new in our vibrant community.Special Guest Speaker: Get ready for an insightful talk and live demo of Microsoft Copilot Studio templates by our special guest.Regular Updates: Stay informed with our routine updates for User Groups and Super Users.Community Insights: We'll provide general information about ongoing and upcoming community initiatives. Don't Miss Out: Register Now: Choose the session that fits your schedule best.Check your private messages or Super User Forum for registration links. We're excited to connect with you and continue building a stronger community together.   See you at the call!  

Users online (2,781)