cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
spinneroo
Helper V
Helper V

Need help with Flow for incremental auto number and multiple instances of the Flow at the same time

Hello I had a workflow in SharePoint Designer that worked nicely creating an incremental auto number (year plus number) for an approval workflow that I changed to Flow at the beginning of this year. I've recently discovered there have been issues with it recreating the same number or going back to a previous number. I now have requests with the same number!

 

I have two lists: one with an approval workflow that needs the auto number at the end of the flow to send an email; the other where the auto number is created.

 

I'm pretty sure it's when someone approves a bunch of the workflows for the first list and do it in quick succession and so stuffing up creating the auto number in the second list.

 

I thought about putting a one minute delay in some of the steps, but that's not going to work if the approver approves a few workflows in quick succession anyway. I was hoping someone might have some advice. Here's what the flow looks like. The last image is the list the auto number is created in.

 

Any help is greatly appreciated, than you 🙂

 

 

2020-09-21 08_54_59-Window.png

 

 

2020-09-21 08_55_58-Window.png

2020-09-21 09_06_43-Edit your flow _ Power Automate.png

 

 

2020-09-21 08_58_10-Window.png

1 ACCEPTED SOLUTION

Accepted Solutions
thjeffri
Employee
Employee

Hi xxxxmints,

 

I think you have probably identified the issue exactly correctly, which is that this is most likely to happen when someone triggers your flow many times in a short span.

 

Here is one method you could use to prevent the issue:

  1. Combine the two flows you described into one flow AND
  2. Set the Concurrency Control on your flow's trigger to 1

 

To set the Concurrency Control, select your flow trigger, click the ellipsis (...) icon in the top right, then select Settings.  On the Settings window, set Concurrency Control to On.  You can then set the Degree of Parallelism to 1.

 

The point of doing this is to make sure that your flow has completed and your counter has been incremented before the flow is triggered again.  The downside of doing this is that you limit yourself to the flow running one-at-a-time, which could have the net effect of a performance decrease when many flows are triggered at once.

 

There may be other ways to do this.  This is just one possible idea.  I hope this helps!

 

Tom

View solution in original post

6 REPLIES 6
thjeffri
Employee
Employee

Hi xxxxmints,

 

I think you have probably identified the issue exactly correctly, which is that this is most likely to happen when someone triggers your flow many times in a short span.

 

Here is one method you could use to prevent the issue:

  1. Combine the two flows you described into one flow AND
  2. Set the Concurrency Control on your flow's trigger to 1

 

To set the Concurrency Control, select your flow trigger, click the ellipsis (...) icon in the top right, then select Settings.  On the Settings window, set Concurrency Control to On.  You can then set the Degree of Parallelism to 1.

 

The point of doing this is to make sure that your flow has completed and your counter has been incremented before the flow is triggered again.  The downside of doing this is that you limit yourself to the flow running one-at-a-time, which could have the net effect of a performance decrease when many flows are triggered at once.

 

There may be other ways to do this.  This is just one possible idea.  I hope this helps!

 

Tom

Hello @thjeffri 

Thanks for your help on this.

 

The Flow is already one (not 2 as you have suggested). The first half is the starting and waiting for approvals. I really need that to keep happening. The second part is the incremental auto number (which is where the issue is).

 

Will setting the Degree of Parallelism to 1 stop a Flow from being initiated while one is running?

 

What if I set the Degree of Parallelism on the Apply to Each which is after the approvals have been approved and the auto increment starts?

 

Thanks again.

 

Hi xxxxmints,

 

Yes.  I should've explained it better, but setting the Degree of Parallelism to 1 will make sure the flow runs only one instance at a time, queueing up further requests to trigger the flow.

 

You could set the Concurrency Control on your loop, but that would not prevent multiple instances of the flow from running simultaneously.

 

Tom

Hi Tom

Sorry but this is not clearer for me.

Can I set the Degree of Parallelism to 1 in the Apply to Each half way through the Flow, which would mean the approvals go through and bank up while the auto number is incremented one at a time?

 

 

 

Hi @thjeffri 

Are you able to explain the above to me? Is it ok to set it on the Apply to Each half way through the Flow and not on the trigger?

Hi xxxxmints,

 

Yes, it's OK to do either, or both.  They just do different things.

 

Setting the Degree of Parallelism on the flow to 1 means that the flow will only trigger one at a time.

Setting the DoP on the Apply to Each loop to 1 means the loop will process one item at a time.

 

Tom

Helpful resources

Announcements

Celebrating the May Super User of the Month: Laurens Martens

  @LaurensM  is an exceptional contributor to the Power Platform Community. Super Users like Laurens inspire others through their example, encouragement, and active participation. We are excited to celebrated Laurens as our Super User of the Month for May 2024.   Consistent Engagement:  He consistently engages with the community by answering forum questions, sharing insights, and providing solutions. Laurens dedication helps other users find answers and overcome challenges.   Community Expertise: As a Super User, Laurens plays a crucial role in maintaining a knowledge sharing environment. Always ensuring a positive experience for everyone.   Leadership: He shares valuable insights on community growth, engagement, and future trends. Their contributions help shape the Power Platform Community.   Congratulations, Laurens Martens, for your outstanding work! Keep inspiring others and making a difference in the community!   Keep up the fantastic work!        

Check out the Copilot Studio Cookbook today!

We are excited to announce our new Copilot Cookbook Gallery in the Copilot Studio Community. We can't wait for you to share your expertise and your experience!    Join us for an amazing opportunity where you'll be one of the first to contribute to the Copilot Cookbook—your ultimate guide to mastering Microsoft Copilot. Whether you're seeking inspiration or grappling with a challenge while crafting apps, you probably already know that Copilot Cookbook is your reliable assistant, offering a wealth of tips and tricks at your fingertips--and we want you to add your expertise. What can you "cook" up?   Click this link to get started: https://aka.ms/CS_Copilot_Cookbook_Gallery   Don't miss out on this exclusive opportunity to be one of the first in the Community to share your app creation journey with Copilot. We'll be announcing a Cookbook Challenge very soon and want to make sure you one of the first "cooks" in the kitchen.   Don't miss your moment--start submitting in the Copilot Cookbook Gallery today!     Thank you,  Engagement Team

Announcing Power Apps Copilot Cookbook Gallery

We are excited to share that the all-new Copilot Cookbook Gallery for Power Apps is now available in the Power Apps Community, full of tips and tricks on how to best use Microsoft Copilot as you develop and create in Power Apps. The new Copilot Cookbook is your go-to resource when you need inspiration--or when you're stuck--and aren't sure how to best partner with Copilot while creating apps.   Whether you're looking for the best prompts or just want to know about responsible AI use, visit Copilot Cookbook for regular updates you can rely on--while also serving up some of your greatest tips and tricks for the Community. Check Out the new Copilot Cookbook for Power Apps today: Copilot Cookbook - Power Platform Community.  We can't wait to see what you "cook" up!    

Welcome to the Power Automate Community

You are now a part of a fast-growing vibrant group of peers and industry experts who are here to network, share knowledge, and even have a little fun.   Now that you are a member, you can enjoy the following resources:   Welcome to the Community   News & Announcements: The is your place to get all the latest news around community events and announcements. This is where we share with the community what is going on and how to participate.  Be sure to subscribe to this board and not miss an announcement.   Get Help with Power Automate Forums: If you're looking for support with any part of Power Automate, our forums are the place to go. From General Power Automate forums to Using Connectors, Building Flows and Using Flows.  You will find thousands of technical professionals, and Super Users with years of experience who are ready and eager to answer your questions. You now have the ability to post, reply and give "kudos" on the Power Automate community forums. Make sure you conduct a quick search before creating a new post because your question may have already been asked and answered. Galleries: The galleries are full of content and can assist you with information on creating a flow in our Webinars and Video Gallery, and the ability to share the flows you have created in the Power Automate Cookbook.  Stay connected with the Community Connections & How-To Videos from the Microsoft Community Team. Check out the awesome content being shared there today.   Power Automate Community Blog: Over the years, more than 700 Power Automate Community Blog articles have been written and published by our thriving community. Our community members have learned some excellent tips and have keen insights on the future of process automation. In the Power Automate Community Blog, you can read the latest Power Automate-related posts from our community blog authors around the world. Let us know if you'd like to become an author and contribute your own writing — everything Power Automate-related is welcome.   Community Support: Check out and learn more about Using the Community for tips & tricks. Let us know in the Community Feedback  board if you have any questions or comments about your community experience. Again, we are so excited to welcome you to the Microsoft Power Automate community family. Whether you are brand new to the world of process automation or you are a seasoned Power Automate veteran - our goal is to shape the community to be your 'go to' for support, networking, education, inspiration and encouragement as we enjoy this adventure together.     Power Automate Community Team

Hear what's next for the Power Up Program

Hear from Principal Program Manager, Dimpi Gandhi, to discover the latest enhancements to the Microsoft #PowerUpProgram, including a new accelerated video-based curriculum crafted with the expertise of Microsoft MVPs, Rory Neary and Charlie Phipps-Bennett. If you’d like to hear what’s coming next, click the link below to sign up today! https://aka.ms/PowerUp  

Tuesday Tip | How to Report Spam in Our Community

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.   As our community family expands each week, we revisit our essential tools, tips, and tricks to ensure you’re well-versed in the community’s pulse. Keep an eye on the News & Announcements for your weekly Tuesday Tips—you never know what you may learn!   Today's Tip: How to Report Spam in Our Community We strive to maintain a professional and helpful community, and part of that effort involves keeping our platform free of spam. If you encounter a post that you believe is spam, please follow these steps to report it: Locate the Post: Find the post in question within the community.Kebab Menu: Click on the "Kebab" menu | 3 Dots, on the top right of the post.Report Inappropriate Content: Select "Report Inappropriate Content" from the menu.Submit Report: Fill out any necessary details on the form and submit your report.   Our community team will review the report and take appropriate action to ensure our community remains a valuable resource for everyone.   Thank you for helping us keep the community clean and useful!

Users online (2,951)