Showing results for 
Search instead for 
Did you mean: 
Not applicable

Unable to write data into Excel file

I have created flow which ideally writes 500-1000 rows of data in an excel which is kept in centralized sharepoint/onedrive. This flow has been shared with around 600 users and this flow is scheduled to run everyday 8am. The problem is Excel going as Not responded and flow got timeout. I am guessing that since all the flows trying to write the data in almost same time, I am facing this issue. Kindly advice me on the approach. I can't have different excels for all the users.   

Community Champion
Community Champion

MMm... it looks like a concurency problem. So, all these 600 users already installed you flow and invokes your flow simoultaneously, right? Or, does it run only once a day, but it creates/updates so many rows  the file get blocked during the process?

If so, did you consider an alternate architecture? Sharepoint? CDS?


Did I make your day? If so, mark my response as 'Solution' !!!

También escribo sobre Power Automate en este Blog y en Twitter

Not applicable

  • Yup, it is concurrency issue. Yes all the 600 users(Executives, Directors, Partners) going to install this. It is SharePoint based trigger and admin will trigger this. we are planning to run 6 times day. Once it is triggered its going to extract information and writing it to the centralized excel.  Mostly from all 600 users almost same time. If I am not wrong over all data for first run is minimum 10k rows(only for first run) and from the second run onwards maximum of 1000 for all the users. 
  • Earlier I have planned with "SharePoint List" only. But most of the forums suggesting that to handle huge data SharePoint list is not a better approach. Can we do this using SharePoint List?? Will that be an good approach? I am 100% percent sure that the data won't be more than 6,00,000 rows, even if it runs 5times a day for the whole year.
  • Could you help me with some approach or methods or the effective way?

Hi again

Did you consider an hybrid approach?

Sharepoint to avoid concurrency problems; you flow should store daily related data there.

Once a day you can backup daily data from SP to an Excel, and delete Sharepoint old entries. So Excel to avoid too many rows on SP.


Anyway, it is difficult to say, I am just guessing you are implementing some sort of COVID report per employee/patient. IN such a case I would try with this hybrid approach. But if your flow that is executed by 600 users at the same time need to process old data, then my suggestion is nonsense.


Hope this helps



Did I make your day? If so, mark my response as 'Solution' !!!

También escribo sobre Power Automate en este Blog y en Twitter

Not applicable

Yes it is going to be triggered by all the 600 users same time. But there will be small difference in time based on dataset.

Is SharePoint has a concurrency issue? 

New Member

I'm having the same issues, my power automate is extracting my data from websites great but it's only extracting it to different Excel sheets and naming it ,book one ,book two etc I needed to extract the data back to the same original Excel sheet ( Excel instance)
New Member

I'm having the same issues, my power automate is extracting my data from websites great but it's only extracting it to different Excel sheets and naming it ,book one ,book two etc. I needed to extract the data back to the same original Excel sheet ( Excel instance)

Helpful resources


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:   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!  

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 (4,730)