Issue with Teams Tab App
Hi, We are developing a teams tab app which works fine most of the time but intermittently we are seeing below error and if we just click retry it loads fine.Any tips on how to troubleshoot this issue. the app is hosted on aks and we dont see any issues with the availability of the app. Thanks AzeetSimplifying Microservice Reliability with Dapr
What is Dapr? Dapr is an open-source runtime developed by Microsoft that is used in building resilient, event-driven, and portable applications. It works using the sidecar pattern, meaning every microservice gets a small companion container — the Dapr sidecar — which handles communication, retries, secrets, state, and more. What is Sidecar ? A sidecar is a helper process that runs beside your app, handling system tasks so your code can focus on business logic. Lets see some offerings from Dapr along with examples. #1 . Bindings Connects your app to external systems (like queues, email, or storage) with zero SDK or protocol handling. Without Dapr ❌ var httpClient = new HttpClient(); await httpClient.PostAsJsonAsync("https://api.sendgrid.com/send", email); * Manage HTTP endpoints & credentials * Change provider → rewrite logic With Dapr ✅ await daprClient.InvokeBindingAsync("send-email", "create", email); * One call, no SDK * Replace SendGrid → SMTP → Twilio just by editing config * No code change, no redeploy How to enable binding in for a Azure Container App Open Azure Portal → go to your Container App Environment. From the left pane, click on Container Apps, and choose your desired app (e.g., orders-api). In the Settings section, select Dapr. Enable Dapr toggle → switch it ON. Provide the basic Dapr settings: App ID: A unique name (e.g., orders-app). App Port: The internal port your API listens on (e.g., 8080). App Protocol: Choose HTTP or gRPC (usually HTTP). Click Save to apply. Now, under the same Container App Environment, go to Dapr Components. Click Create → select Binding → choose the type of binding (e.g., azure.storagequeues). #2 . Configuration Centralizes app settings, allowing live configuration updates without redeploying services. Without Dapr ❌ var featureFlag = Configuration["FeatureX"]; * Requires redeploys for every config change * No centralized versioning or dynamic update With Dapr ✅ var config = await daprClient.GetConfiguration("appconfigstore", new[] { "FeatureX" }); * Use Azure App Config, Consul, or any provider * Centralized updates — no redeploys * Consistent access via Dapr SDK How to enable configuration in for a Azure Container App Open Azure Portal → go to your Container App Environment. From the left pane, click on Container Apps, and choose your desired app (e.g., orders-api). In the Settings section, select Dapr. Enable Dapr toggle → switch it ON. Provide the basic Dapr settings: App ID: A unique name (e.g., orders-app). App Port: The internal port your API listens on (e.g., 8080). App Protocol: Choose HTTP or gRPC (usually HTTP). Click Save to apply. Now, under the same Container App Environment, go to Dapr Components. Click Create → select Configuration→ choose the type of configuration (e.g., configuration.azure.appconfig). #3 . Pub/Sub Enables event-driven communication between microservices without needing to know each other's endpoints. Without Dapr ❌ var client = new ServiceBusClient("<connection-string>"); var sender = client.CreateSender("order-topic"); await sender.SendMessageAsync(new ServiceBusMessage(orderJson)); * Tied to Azure Service Bus * Must manage SDKs, connections, retries * Hard to switch to another broker (Kafka, RabbitMQ) With Dapr ✅ await daprClient.PublishEventAsync("pubsub", "order-created", order); * pubsub component defined in YAML (can be Kafka, Redis Streams, etc.) * No SDK, no broker dependency * Just publish the event — Dapr handles transport & retries How to enable pub/sub in for a Azure Container App Open Azure Portal → go to your Container App Environment. From the left pane, click on Container Apps, and choose your desired app (e.g., orders-api). In the Settings section, select Dapr. Enable Dapr toggle → switch it ON. Provide the basic Dapr settings: App ID: A unique name (e.g., orders-app). App Port: The internal port your API listens on (e.g., 8080). App Protocol: Choose HTTP or gRPC (usually HTTP). Click Save to apply. Now, under the same Container App Environment, go to Dapr Components. Click Create → select Pub/Sub→ choose the type of configuration (e.g., pubsub.azure.servicebus.topics). #4 . Secret Stores Securely retrieves credentials and secrets from vaults, keeping them out of configs and code. Without Dapr ❌ var connString = Configuration["ConnectionStrings:DB"]; * Secrets stored in configs or env vars * Risk of leaks and manual rotation With Dapr ✅ var secret = await daprClient.GetSecretAsync("vault", "dbConnection"); * Fetch directly from Azure Key Vault, AWS Secrets, etc. * No secrets in configs * Secure by default, consistent across services How to enable Secret Stores in for a Azure Container App Open Azure Portal → go to your Container App Environment. From the left pane, click on Container Apps, and choose your desired app (e.g., orders-api). In the Settings section, select Dapr. Enable Dapr toggle → switch it ON. Provide the basic Dapr settings: App ID: A unique name (e.g., orders-app). App Port: The internal port your API listens on (e.g., 8080). App Protocol: Choose HTTP or gRPC (usually HTTP). Click Save to apply. Now, under the same Container App Environment, go to Dapr Components. Click Create → select Secret stores→ choose the type of configuration (e.g., secretstores.azure.keyvault). #5 . State Provides a consistent way to store and retrieve application data across services using a simple API. Without Dapr ❌ var cosmosClient = new CosmosClient(connStr); var container = cosmosClient.GetContainer("db", "state"); await container.UpsertItemAsync(order); * Direct dependency on Cosmos DB * Manual retry logic * Tight coupling to storage type With Dapr ✅ await daprClient.SaveStateAsync("statestore", "order-101", order); var data = await daprClient.GetStateAsync<Order>("statestore", "order-101"); * Plug any backend (Redis, Cosmos, PostgreSQL) * Dapr handles retries and consistency * Same code, different backend — total flexibility How to enable State in for a Azure Container App Open Azure Portal → go to your Container App Environment. From the left pane, click on Container Apps, and choose your desired app (e.g., orders-api). In the Settings section, select Dapr. Enable Dapr toggle → switch it ON. Provide the basic Dapr settings: App ID: A unique name (e.g., orders-app). App Port: The internal port your API listens on (e.g., 8080). App Protocol: Choose HTTP or gRPC (usually HTTP). Click Save to apply. Now, under the same Container App Environment, go to Dapr Components. Click Create → select State → choose the type of configuration (e.g., state.azure.cosmosdb). 🧩 Summary Think of Dapr as your invisible co-pilot for building distributed apps. It abstracts away all the repetitive plumbing — state management, pub/sub messaging, secret handling, and external bindings — letting you focus on writing features that matter. With Dapr, you don’t just write code that runs locally; you write code that just works across clouds, containers, and environments, without having to worry about wiring up retries, event delivery, or service-to-service communication manually. 🧰 Demo Source Code I've prepared complete sample on .Net core that touches all major Dapr features: * State Store * Pub/Sub * Bindings * Configuration * Secret Store You can explore it from Github-Dapr-Api Clone, run locally, and experiment — the project uses in-memory storage to keep things lightweight for testing and learning. 📚 References for Deep Dive Official Dapr Docs Dapr for .NET Developers — Microsoft Learn Dapr .NET SDK GitHub
In/Out Board on Teams
We have been requested to create a departmental automated In/Out Board listing all staff, capturing their presence from Outlook/Teams and displaying onto a SharePoint 2013 (on premise versus O365) page. To keep it simple we would like to display name and status (based upon presence). If we could capture information like "in a meeting" or "Busy" or "Away" or "On a call" that would be even better. I have already posted on the MS Tech Community and Earlier on Teams and was advised to check in here. Any advice or guidance would be most helpful...
Audience Ids returning null | SharePoint REST API
Hi, On hitting the SharePoint REST API in the endpoint "_api/Web/Navigation/GetNodeById(2019)/AudienceIds", I am getting a NULL response as seen below But I have added SharePoint groups as audience on the below Can you look into the above matter and help ? Regards, Nebu Thomas Mathew
Accelerate your multi-cloud strategy with Azure storage
Looking to expand your AWS-based solution into Microsoft Azure? Discover how to map your existing storage architecture to Azure’s native services and unlock new performance, scalability, and marketplace opportunities. This guide breaks down key differences between AWS and Azure storage, offers migration best practices, and helps you align with Azure Marketplace requirements for a seamless transition. Read the full blog to explore storage migration paths, service comparisons, and tips for building a resilient, Azure-native deployment. Explore the articleThe Diagonal Suite: Gentle thunking goes a long way!
I've become a big advocate for gentle thunking - using thunks to delay eager evaluation wherever possible in generalized Lambda development. The timings are quicker and the logic is cleaner. On the other hand, thunking the results of MAP, BYROW, or BYCOL - especially when it leads to rows of thunks - tends to introduce recombination overhead and complexity. I think thunking is often dismissed as “too complex,” and that’s understandable if someone’s first exposure involves unwrapping a row of thunks. When used gently thunking becomes indispensable. Typically, I introduce the thunks after the initial benchmarking to see the difference in the calculation times and the after is always quicker. To illustrate, I’ll share The Diagonal Suite - a collection of functions where thunking is used at every opportunity. Simple, clean, deferred logic. What are your thoughts on gentle thunking? Where have you found it helpful/harmful in your own Lambda development? //The Diagonal Suite - Version 1.0 - 10/27/2025 //Author: Patrick H. //Description: Directional traversal and diagonal logic for 2D arrays. // Functions: // • Traverseλ - Directional traversal engine // • ByDiagλ - Diagonal-based aggregation // • DiagMapλ - Wrapper for diagonal matrix extraction // • DiagIndexλ - Targeted diagonal extraction // • Staircaseλ - Construct diagonal staircases from a vector or 2D array //──────────────────────────────────────────────────────────── //------------------------------------------------------------------------------------------- //Traverseλ - Directional Axis Remapper //------------------------------------------------------------------------------------------- //The selected axis is remapped to the top-left traversal order. //Accepted directions: // "NE" or 1 → Northeast (↗) // "SE" or 2 → Southeast (↘) // "SW" or 3 → Southwest (↙) //Parameters: //array → 2D input array (scalars not accepted) //new_axis → Axis direction ("NE", "SE", "SW" or 1–3) Traverseλ = LAMBDA( array, new_axis, //Input validation IF(OR(ROWS(array)=1,COLUMNS(array)=1), "#2D-ARRAY!", IF(AND(ISNUMBER(new_axis),OR(new_axis<=0,new_axis>3)),"#AXIS!", LET( //Dimensions i, ROWS(array), j, COLUMNS(array), //Axis traversal indices (deferred) x_NE, LAMBDA(SEQUENCE(j,,1,0)*SEQUENCE(,i)), y_NE, LAMBDA(SEQUENCE(j,,j,-1)*SEQUENCE(,i,1,0)), x_SE, LAMBDA(SEQUENCE(i,,i,-1)*SEQUENCE(,j,1,0)), y_SE, LAMBDA(SEQUENCE(i,,j,0)+SEQUENCE(,j,0,-1)), x_SW, LAMBDA(SEQUENCE(j,,i,0)+SEQUENCE(,i,0,-1)), y_SW, LAMBDA(SEQUENCE(j,,1)*SEQUENCE(,i,1,0)), //Axis mode selection mode, IF(ISNUMBER(new_axis),new_axis, SWITCH(new_axis,"NE",1,"SE",2,"SW",3,1)), //Index selection x, CHOOSE(mode,x_NE,x_SE,x_SW), y, CHOOSE(mode,y_NE,y_SE,y_SW), //Unwrap indices and get results result, INDEX(array,x(),y()), result ) ))); //------------------------------------------------------------------------------------------- //ByDiagλ - Diagonal-based aggregation //------------------------------------------------------------------------------------------- //Apply an ETA function or Lambda to diagonals //Parameters: //array → 2D input array (scalars not accepted) //[function] → ETA function or Lambda applied to diagonals //[row_wise_stack?] → Optional: Display results as a vertical stack ByDiagλ = LAMBDA( array, [function], [row_wise_stack?], //Check array input ValidateDiagλ(array,,function,row_wise_stack?, LET( //Optional parameters No_Function, ISOMITTED(function), No_row_wise_stack,ISOMITTED(row_wise_stack?), //Dimensions i, ROWS(array), j, COLUMNS(array), //Diagonal count k, MIN(i,j), //Indices - deferred r, LAMBDA(SEQUENCE(k)*SEQUENCE(,j,1,0)), y, LAMBDA(SEQUENCE(k)+SEQUENCE(,j,0,1)), c, LAMBDA(IF(y()>j,NA(),y())), //Unwrap indices, shape, and aggregate result, IFNA(INDEX(array,r(),c()),""), shaped, IF(No_row_wise_stack,result,TRANSPOSE(result)), final, IF(No_Function,shaped, IF(No_row_wise_stack,BYCOL(shaped,function), BYROW(shaped,function))), final ))); //------------------------------------------------------------------------------------------- //DiagMapλ - Wrapper (Calls ByDiagλ) to extract diagonals as 2D matrix //------------------------------------------------------------------------------------------- //Calls ByDiagλ to extract the diagonals from a 2D array. //Parameters: *Please see ByDiagλ for descriptions.** DiagMapλ = LAMBDA( array, [row_wise_stack?], ByDiagλ(array,,row_wise_stack?) ); //------------------------------------------------------------------------------------------- //DiagIndexλ - Targeted diagonal extraction //------------------------------------------------------------------------------------------- //Extract a diagonal or anti-diagonal vector from a 2D array. //Parameters: //array → 2D input array (scalars not accepted) //col_index → Column number to start from. Negative = anti-diagonal DiagIndexλ = LAMBDA( array, col_index, //Input checks ValidateDiagλ(array,col_index,,, LET( //Dimensions i, ROWS(array), j, COLUMNS(array), //Diagonal direction: +1 = SE, –1 = SW s, SIGN(col_index), //Determine diagonal length based on bounds k, IF(s>0, MIN(i, j + 1 - col_index), MIN(i, ABS(col_index))), start, IF(s<0,ABS(col_index),col_index), //Indices - deferred x, LAMBDA(SEQUENCE(k)), y, LAMBDA(SEQUENCE(k,,start,s)), //Unwrap indices and extract vector deliver, INDEX(array,x(),y()), deliver ))); //------------------------------------------------------------------------------------------- //Staircaseλ — Construct diagonal staircases from a vector or 2D array //------------------------------------------------------------------------------------------- //Parameters: //array → Input array (flattened to vector row-wise) //block_size → Number of rows/columns per staircase block //[block_offset] → Optional padding between staircases //[IsHorizontal?] → Optional toggle for column-wise orientation //[IsAntiDiag?] → Optional toggle to display staircase anti-diagonal. Staircaseλ = LAMBDA( array, block_size, [block_offset], [IsHorizontal?], [IsAntiDiag?], //Check inputs ValidateStaircaseλ(array,block_size,block_offset, LET( //Check optional parameters no_Block_Offset, ISOMITTED(block_offset), zero_Offset, block_offset=0, col_offset, IF(No_Block_Offset,0,block_offset), IsVertical?, ISOMITTED(IsHorizontal?), Not_Anti_Diag, ISOMITTED(IsAntiDiag?), //Convert to vector and get dimensions flat, TOCOL(array), k, COUNTA(flat), seq, LAMBDA(SEQUENCE(k)), V, TOROW(EXPAND(WRAPROWS(seq(),block_size),, block_size+block_offset,0)), width, COLUMNS(V), //Anchors and indices - deferred i, LAMBDA(SEQUENCE(block_size)*SEQUENCE(,width,1,0)), col_arr, LAMBDA(IF(Not_Anti_Diag,SEQUENCE(,width), SEQUENCE(,width,width,-1))), j, LAMBDA(MOD(col_arr(),block_size+block_offset)), j_, LAMBDA(IF((no_Block_Offset)+(zero_Offset), IF(j()=0,block_size,j()),j())), idx, LAMBDA(IF(i()=j_(),V,NA())), //Obtain results, shape, and calculate result, DROP(IFNA(INDEX(flat,idx()),""),,-col_offset), final, IF(IsVertical?,TRANSPOSE(result),result), final ))); //---------------------Error Handling & Validation--------------------------- //Validates inputs for Staircaseλ. Please see Staircaseλ for parameter //descriptions. ValidateStaircaseλ = LAMBDA( array, block_size, [block_offset], [on_valid], LET( //Checks NotArray,TYPE(array)<>64, Invalid_block_size, OR(ISTEXT(block_size),block_size<=0,block_size>COUNTA(array)), Invalid_block_offset, OR(ISTEXT(block_offset),block_offset<0), //Logic gate IF(NotArray, "#NOT-ARRAY!", IF(Invalid_block_size, "#BLOCK-SIZE!", IF(Invalid_block_offset,"#BLOCK-OFFSET", on_valid)))) ); //---------------------Error Handling & Validation--------------------------- //Validate inputs for ByDiagλ, DiagMapλ, and DiagIndexλ. //*Please see those functions for parameter descriptions.* ValidateDiagλ= LAMBDA( array, [col_index], [function], [row_wise_stack?], [on_valid], LET( //---Checks--- //Array input IsArray?, TYPE(array)=64, Not_Array, NOT(IsArray?), //Col_index No_Col_Index, ISOMITTED(col_index), Col_Index_Included, NOT(No_Col_Index), Not_Valid_Col_Index?, NOT(AND(col_index<>0, ABS(col_index)<=COLUMNS(array))), //Function No_Function, ISOMITTED(function), Function_Included, NOT(No_Function), Invalid_Function?, AND(ISERROR(BYROW({1,1},function))), //Shaping input RowWiseStack?, NOT(ISOMITTED(row_wise_stack?)), //Deterine which function is being validated DiagIndex, Col_Index_Included, ByDiag, AND(No_Col_Index, Function_Included), DiagMap, AND(No_Col_Index, No_Function), //Logic gates //DiagIndexλ a, IF(Not_Array, "#NOT-ARRAY!", IF(Not_Valid_Col_Index?,"#COLUMN-INDEX!", on_valid)), //ByDiagλ b, IF(Not_Array, "#NOT-ARRAY!", IF(Invalid_Function?, "#FUNCTION!", on_valid)), //DiagMapλ c, IF(Not_Array, "#NOT-ARRAY!", on_valid), //Logic gate selection decide, IF(DiagIndex,a, IF(DiagMap,c, IF(ByDiag,b, "#UNROUTED!"))), decide )); //End of The Diagonal Suite - Version 1.0 //Author: Patrick H.Unable to create a new E5 Developer subscription
Hi all! I'm trying to apply for a free E5 Developer subscription, to try out an MS Teams apps and MS 365 add-ins development workflow, while my employer evaluates whether to get into the market. I've joined the MS 365 Developer Program with my personal account, and they say, I should see a big blue "Set up E5 subscription" button on my dashboard. The problem is - I have nothing in its place. Does anybody know if this program is still continued? Maybe I did something wrong in configuring my account? Any suggestions would be greatly appreciated. Cheers, AndreyOn‑Device AI with Windows AI Foundry
From “waiting” to “instant”- without sending data away AI is everywhere, but speed, privacy, and reliability are critical. Users expect instant answers without compromise. On-device AI makes that possible: fast, private and available, even when the network isn’t - empowering apps to deliver seamless experiences. Imagine an intelligent assistant that works in seconds, without sending a text to the cloud. This approach brings speed and data control to the places that need it most; while still letting you tap into cloud power when it makes sense. Windows AI Foundry: A Local Home for Models Windows AI Foundry is a developer toolkit that makes it simple to run AI models directly on Windows devices. It uses ONNX Runtime under the hood and can leverage CPU, GPU (via DirectML), or NPU acceleration, without requiring you to manage those details. The principle is straightforward: Keep the model and the data on the same device. Inference becomes faster, and data stays local by default unless you explicitly choose to use the cloud. Foundry Local Foundry Local is the engine that powers this experience. Think of it as local AI runtime - fast, private, and easy to integrate into an app. Why Adopt On‑Device AI? Faster, more responsive apps: Local inference often reduces perceived latency and improves user experience. Privacy‑first by design: Keep sensitive data on the device; avoid cloud round trips unless the user opts in. Offline capability: An app can provide AI features even without a network connection. Cost control: Reduce cloud compute and data costs for common, high‑volume tasks. This approach is especially useful in regulated industries, field‑work tools, and any app where users expect quick, on‑device responses. Hybrid Pattern for Real Apps On-device AI doesn’t replace the cloud, it complements it. Here’s how: Standalone On‑Device: Quick, private actions like document summarization, local search, and offline assistants. Cloud‑Enhanced (Optional): Large-context models, up-to-date knowledge, or heavy multimodal workloads. Design an app to keep data local by default and surface cloud options transparently with user consent and clear disclosures. Windows AI Foundry supports hybrid workflows: Use Foundry Local for real-time inference. Sync with Azure AI services for model updates, telemetry, and advanced analytics. Implement fallback strategies for resource-intensive scenarios. Application Workflow Code Example 1. Only On-Device: Tries Foundry Local first, falls back to ONNX if foundry_runtime.check_foundry_available(): # Use on-device Foundry Local models try: answer = foundry_runtime.run_inference(question, context) return answer, source="Foundry Local (On-Device)" except Exception as e: logger.warning(f"Foundry failed: {e}, trying ONNX...") if onnx_model.is_loaded(): # Fallback to local BERT ONNX model try: answer = bert_model.get_answer(question, context) return answer, source="BERT ONNX (On-Device)" except Exception as e: logger.warning(f"ONNX failed: {e}") return "Error: No local AI available" 2. Hybrid approach: On-device first, cloud as last resort def get_answer(question, context): """ Priority order: 1. Foundry Local (best: advanced + private) 2. ONNX Runtime (good: fast + private) 3. Cloud API (fallback: requires internet, less private) # in case of Hybrid approach, based on real-time scenario """ if foundry_runtime.check_foundry_available(): # Use on-device Foundry Local models try: answer = foundry_runtime.run_inference(question, context) return answer, source="Foundry Local (On-Device)" except Exception as e: logger.warning(f"Foundry failed: {e}, trying ONNX...") if onnx_model.is_loaded(): # Fallback to local BERT ONNX model try: answer = bert_model.get_answer(question, context) return answer, source="BERT ONNX (On-Device)" except Exception as e: logger.warning(f"ONNX failed: {e}, trying cloud...") # Last resort: Cloud API (requires internet) if network_available(): try: import requests response = requests.post( '{BASE_URL_AI_CHAT_COMPLETION}', headers={'Authorization': f'Bearer {API_KEY}'}, json={ 'model': '{MODEL_NAME}', 'messages': [{ 'role': 'user', 'content': f'Context: {context}\n\nQuestion: {question}' }] }, timeout=10 ) answer = response.json()['choices'][0]['message']['content'] return answer, source="Cloud API (Online)" except Exception as e: return "Error: No AI runtime available", source="Failed" else: return "Error: No internet and no local AI available", source="Offline" Demo Project Output: Foundry Local answering context-based questions offline : The Foundry Local engine ran the Phi-4-mini model offline and retrieved context-based data. : The Foundry Local engine ran the Phi-4-mini model offline and mentioned that there is no answer. Practical Use Cases Privacy-First Reading Assistant: Summarize documents locally without sending text to the cloud. Healthcare Apps: Analyze medical data on-device for compliance. Financial Tools: Risk scoring without exposing sensitive financial data. IoT & Edge Devices: Real-time anomaly detection without network dependency. Conclusion On-device AI isn’t just a trend - it’s a shift toward smarter, faster, and more secure applications. With Windows AI Foundry and Foundry Local, developers can deliver experiences that respect user specific data, reduce latency, and work even when connectivity fails. By combining local inference with optional cloud enhancements, you get the best of both worlds: instant performance and scalable intelligence. Whether you’re creating document summarizers, offline assistants, or compliance-ready solutions, this approach ensures your apps stay responsive, reliable, and user-centric. References Get started with Foundry Local - Foundry Local | Microsoft Learn What is Windows AI Foundry? | Microsoft Learn https://devblogs.microsoft.com/foundry/unlock-instant-on-device-ai-with-foundry-local/Understanding Small Language Modes
Small Language Models (SLMs) bring AI from the cloud to your device. Unlike Large Language Models that require massive compute and energy, SLMs run locally, offering speed, privacy, and efficiency. They’re ideal for edge applications like mobile, robotics, and IoT.
