cancel
Showing results for 
Search instead for 
Did you mean: 
Reply
RonHappel
Resolver I
Resolver I

Conflict error but there is no conflict

Hi all,

 

Sometimes I'm getting conflicts errors on a SharePoint list when I know for sure nobody else is using the record.

Does anybody know why this happens?

The statement that causes sometimes the error is:

Patch(Tabel3Mnd;First(Filter(Tabel3Mnd;Achternaam=AfAchternaam And Voornaam=AfVoornaam And JaarMaand = AfJaarMaand));{LaatsteSaldo:AfSaldo-1;
DatumsAf:Left(Concat(HulpTabelAfb;Result&"#");Len(Concat(HulpTabelAfb;Result&"#"))-1);
Groepen:Left(Concat(HulpTabelGrp;Result&"#");Len(Concat(HulpTabelGrp;Result&"#"))-1)}))

It worked fine for more than 1,5 years.

 

Thanks, Ron

2 REPLIES 2
poweractivate
Most Valuable Professional
Most Valuable Professional

@RonHappel 

 

Where is the Patch statement being used? 

 

Check if adding a Refresh after the end of this Patch helps.

 

Also check if in addition to the above:

 

1. Disabling the whole form immediately right before the Patch and preventing any other Patch to this record (using variable).

2. Having a Custom Timer that after 1 second or 2 seconds, sets the variable back and re-enables the form.

 

The reason for the above, is that it is possible that even if you will have the Refresh, the subsequent Patch will be operating on the stale record, so it will prevent the change. It shows this error message about another user - actually that user could be you yourself operating on a stale version of the record.

 

For a superior solution to any of the above, if the above is not enough, you may need to consider something like this:

 

1. Hidden custom column such as "customVersion" and hidden field which will reference this custom column's current value for the current record being worked on. If the form has not been edited yet by this client, a second hidden field will contain the same value for the moment (see below).

 

2.  When value is Patched, whole form is disabled immediately, then new  unique "customVersion" value (e.g. based on random value + current Timestamp for instance) is generated by the Power App and then this value kept in another hidden field - the value of this other hidden field is modified to now contain this new value, and also sent to SharePoint along with the Patch.

 

2b. Rather than to use Timers or anything very complicated, maybe instead the whole form could be disabled immediately because of a condition like this: If(Label1.Text = Label2.Text,FormMode.Edit,FormMode.View) - then once the value of Label was set to different value immediately before Patch, the form has already been instantly set to the View mode just before the Patch has even been issued. At the end of this formula, the Refresh(YourDataSource) is also there.

 

3. Once the Datasource Refresh has completed, the first hidden field should update with the correct "customVersion" value . This should end up causing the form to become in Edit mode again. After this, it should be not as easy to face this problem again. Now it should only show that error, if someone else really was using it at the same time.

 

Check if the above might help you for guidance.

 

Also check if the below similar topic helps:

Save conflict error when patching -Powerapps 

Thanks for your reply and help. I will try to explain this further.

 

The app shows a selection of the database (SharePoint lists) in a Gallery.

The purpose of the app is to update a balance ((Saldo) for a selection of items (Persons) in the Gallery. Any update is logged in a Transaction (SharePoint List too).

The user sees a particular person and selects the ‘Kies’ button for that item (Person). He continues and selects another person, and so on.

Gallery.png

Immediately after an individual selection all buttons in the Gallery are disabled, followed by the Patch of the Transaction and the Patch of the Person. The relevant fields updated in the Person-record are Saldo and LaatsteAfboeking (timestamp of the transaction).

 

The Gallery contains a hidden column with the value of the field LaatsteAfboeking. Only when this field changes in the Gallery the buttons will be activated and therefore selectable. My assumption here is that the Gallery has been refreshed because it now shows the hidden value in the column LaatsteAfboeking. In addition the new balance (Saldo) is shown.

 

With regard to the example above let’s assume the user selects ‘Beukers’ -> buttons are disabled -> patches are initiated -> Gallery refreshes - > LaatsteAfboeking changes -> buttons are active again.

Now the user selects ‘Chotoe’. A conflict error occurs on the Patch issuing the update in the Transaction list. This transaction record is physically a different record (SharePoint List item).

 

My assumption is that when the app issues the Patch on ‘Beukers’ the actual update is delegated to the back-end process and the app itself has no control anymore. Subsequently the Patch on ‘Chotoe’ is initiated and it signals a conflict because the patch on Beukers is not completed yet by the back-end process. My assumption is based on the fact that the conflict error occurs occasionally. Probably when the Microsoft servers are slower than usual. Strange however is that the Gallery refreshes after the Patch on Beukers which activates the buttons.

 

I haven’t used a Refresh statement after the Patch because this will take a lot of time due to the size of the SharePoint list making the whole update process unacceptable for the user.

I’ve tried a timer in addition the hidden field in the Gallery, but selecting the right duration is difficult.

 

It looks like I’ve implemented your hidden field solution, however I’m not completely sure it’s the same kind of solution.

I hope the above clarifies the problem further and it will help to find a solution.

By the way what do you mean by ‘stale record’?

 

Kind regards, Ron

Helpful resources

Announcements

Copilot Cookbook Challenge | Week 2 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   Week 2 Results:  Congratulations to the Week 2 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. Kasun_Pathirana1. ManishSolanki2. cloudatica2. madlad3. n/a3. SpongYe4. n/a4. n/a5. n/a5. n/a

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  

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!  

Top Solution Authors
Top Kudoed Authors
Users online (5,147)