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Call SharePoint Server Subscription Edition REST API via App Only Authentication
Need to call SharePoint Server Subscription Edition REST API via App Only Authentication and found below article. https://learn.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly-azureacs can i do this using TokenHelper.cs as suggested in the article? Seems request tires to access ACS because of below settings in TokenHelper.cs and requests timeout since the code is executed from a Server where no access to Azure ACS. private static string GlobalEndPointPrefix = "accounts"; private static string AcsHostUrl = "accesscontrol.windows.net"; Any support on how to do this for On-Prem SharePoint is really appreciated.sudeshwithanageJan 05, 2026Copper Contributor24Views0likes0CommentsInvalidRequest Error for Attachments in Personal Microsoft Lists
Hello Community, I’m experiencing a persistent issue with Microsoft Lists (personal account, accessed via web on Windows 11 using Microsoft Edge). Problem: All attachments in my personal Lists return the following error when clicked: {"error":{"code":"invalidRequest","message":"Invalid request"}} This happens for both my oldest and recently uploaded attachments. This does NOT happen to NEW list items as of today and onwards I verified that attachments were successfully uploaded at the time, but now none are accessible. Age of my uploads stretch from 2023 to this time Environment: Windows 11 (fully updated) Microsoft Edge (latest version) Lists accessed via web (not the app) Personal Microsoft account (not work/school) No recent migration, rename, or permissions changes. Steps Tried: Renamed the list (removed special character “ø” from the name). Uploaded new attachments Checked that both my sub-items are inaccessible (attachment and personal attachment fields used separately from item to item. No double uploads) Checked OneDrive and Recycle Bin — no attachments visible. No access to “Site contents” since this is a personal account. Questions: Is this a known issue with personal Lists attachments? Are attachments stored in a hidden folder in OneDrive/SharePoint for personal accounts? If so, what is the usual path? Is there any way to recover these attachments or fix the invalidRequest error? Impact: I used Lists to manage and store receipts, and now all attachments appear broken. This is critical for my workflow. Any guidance or escalation would be greatly appreciated!fredNor92Jan 03, 2026Copper Contributor21Views0likes0CommentsHow to improve performance of SPFx application?
Hello Everyone, We have created SPFx + React application. We have used the SPFx 1.21.1 version. We have used different npm packages into this project. The project works as expected functionally. We have checked the performance of the application using Lighthouse in Google Chrome. We found the below performance matrix from Lighthouse. We need to improve the performance of our SPFx application. Can anyone suggest the correct path to achieve the same? Thanks in Advance.BhoomeshJoshiDec 19, 2025Brass Contributor42Views0likes0CommentsValidation rule for postal code is being ignored
In the SharePoint list, there is a column “Country” and a column “Postal Code.” A validation rule has been configured in the list validation settings to ensure that when the country “Germany” is selected, only postal codes with exactly 5 digits can be saved. Currently, this validation rule is being completely ignored. Regardless of whether the postal code contains fewer, more, or no digits at all, the entry can always be saved. The validation does not take effect. Expected Behavior: When Germany is selected in the Country field, the entry should only be saved if the postal code contains exactly 5 numeric characters. If the input is invalid, an appropriate error message should appear and prevent saving. Actual Behavior: The validation rule is ignored. All inputs — including invalid postal codes — are saved. No error message is displayed. Impact: Incorrect or incomplete data is stored in the list. Manual corrections are required afterward, causing additional effort and increasing the risk of errors. The english version of formule we used =IF([Land]="Deutschland", IF(LEN([Postleitzahl])=5, 1, 0)) Why doesn't the validation work? Thank you in advance for your comments !KnipperLucasDec 19, 2025Copper Contributor27Views0likes0CommentsBest Practice guide for stretched HA farm?
Hi, Im planning a SharePoint Subscription farm over 2 data centers. Should be pretty simple. Farm will consist of: dc 1: 1 spfe, 1 spapp, 1 sql dc 2: 1 spfe, 1 spapp, 1 sql Sql servers will be AlwaysOn. Im not sure how to set up the sp servers. Is there a preferred way to set it up, with how to? Our domains have 10gb connections so should be more than sufficient for stretched and HA. Can CA site be hosted from multiple servers? How are IPs/DNS/certs handled? What else do I need to get my head around? Thanks. Swanswanlake_itDec 17, 2025Copper Contributor18Views0likes0CommentsCreating a slide show from a list webpart- Brainstorming
I have a SP list that i want to do a slideshow onto a page. It's basically to showcase achievements with a column (yes/no) to filter. it's all text, no pictures, just to displaying what happened and want it to be automatic to scroll through. tried hero webpart, and that did not work. Used list webpart which of course just shows the whole list. Though about making an power app, but i couldn't figure out how it would be able to showcase each item on the list automatically with me creating a new screen every time one is submitted. Any suggestions will be useful. tynerdyplayerDec 17, 2025Copper Contributor35Views0likes0CommentsSharePoint 2013 Newsfeed
I have a largely cosmetic problem. I have deleted and re-created someone's mysite (OneDrive). Now works fine. However, the landing page is the Newsfeed. It is stuck on an error about setting up OneDrive. It doesn't seem to have noticed OneDrive is fine. What I want to do is just reset the Newsfeed to its defaults. It looks like it is "stuck" as if OneDrive is broken. In SharePoint 2013 can I reset a NewsFeed page for a user in a non-disruptive way because the user now has data on their OneDrive. Stephenstephen_dxc122Dec 12, 2025Brass Contributor25Views0likes0CommentsSharePoint Document Libraries: New UX, AI Actions & Forms Explained
🚀 New SharePoint Document Library Updates You Need to Know! Microsoft has introduced major improvements to SharePoint document libraries that make collaboration smarter and more efficient: ✅ Refreshed UX – A cleaner, faster interface inspired by OneDrive ✅ AI Actions with Copilot – Summarize documents or ask questions without opening files ✅ Custom Forms – Collect structured data and documents directly in libraries These updates are designed to boost productivity and simplify document management across Microsoft 365. 📅 Rollout is already in progress! 👉 Learn more in my latest video: https://youtu.be/qU0z2Pq8_4k 💬 Which feature are you most excited about? Drop your thoughts below! #SharePoint #Microsoft365 #Copilot #AI #Productivity #DigitalWorkplace117Views1like0CommentsReact SPFx web part becomes invisible on random page refresh – Need help diagnosing issue
Hello Everyone, I am facing a random rendering issue with a React SPFx web part (HelloWorld2) on SharePoint Online. The web part becomes invisible on page refresh, and I need help diagnosing the cause. Setup Steps 1. Solution Source Code Here is my source code and steps followed for deployment: https://github.com/JagtapY17/DemoProjects/blob/main/SPOnlineWP.zip Download and extract the SPFx solution Open the solution directory in the command prompt Run the following commands: npm install gulp bundle --ship gulp package-solution --ship Retrieve the generated .sppkg file from: sharepoint/solution/sp-online-wp.sppkg 2. SharePoint Online Deployment Steps performed in SharePoint Online: Created a new Community Site (Department template) Uploaded the .sppkg package into the App Catalog Added the app to the site (Site Contents → Add an app) Added the HelloWorld2 web part to the homepage (placed at the top) Added 8–9 other web parts below it on the page Issue / Question After adding the web part: The HelloWorld2 web part renders inconsistently on page refresh Out of 10 refreshes, 6–7 times the web part does not render at all Other web parts load fine every time No browser console errors appear It seems the web part gets skipped randomly during the page render pipeline I request community members to: Check the provided solution package Review the HelloWorld2 web part code Suggest the possible cause of this intermittent non-rendering issue Any insights or debugging suggestions will be greatly appreciated. Thank you! DemoProjects/SPOnlineWP.zip at main · JagtapY17/DemoProjects Projects for Testing . Contribute to JagtapY17/DemoProjects development by creating an account on GitHub.YJ17Nov 29, 2025Copper Contributor29Views0likes0Comments
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