https://twity.de/ All Around Microsoft Dynamics Business Central en-us https://twity.de/businesscraft-item-images-with-mediaset Business Central has a data type for more than one image per record: MediaSet. The item's Picture field is one. In practice, an item in BC still has exactly one picture. In BusinessCraft, an item can now have as many images as you like, with a carousel in the FactBox and a fullscreen slideshow. MediaSet works the way it was meant to. :) Sat, 31 Oct 2026 22:17:50 +0000 https://twity.de/businesscraft-permissions-and-virtual-tables The last BusinessCraft post ended with permissions as the next big construction site. They work now: system, tenant, and AL permission sets, plus inherent permissions directly on objects. On the way, BusinessCraft also got its first virtual tables: Date, Integer, Session, AllObj, and AllObjWithCaption. Permissions Fri, 30 Oct 2026 15:35:34 +0000 https://twity.de/businesscraft-transactions-events-and-sql-server The last BusinessCraft post ended with two open questions: what happens when a posting fails halfway, and when do events arrive? Both are answered now. A failed posting rolls back, the mini base app publishes events, and a second app subscribes to them. On the way, BusinessCraft also got a SQL Server driver and an Extension Management page. Thu, 29 Oct 2026 07:54:14 +0000 https://twity.de/businesscraft-a-mini-base-app-with-reports-and-translations In the last BusinessCraft post, craft-server ran two small AL apps: a customer list, a cue, and a few actions. That was a good start, but it was not a business process. So I wrote a mini base app. It has a full sales flow from quote to posted invoice, number series, ledger entries, three RDLC reports, and a German translation. Sat, 24 Oct 2026 13:48:25 +0000 https://twity.de/businesscraft-the-service-tier-runs-al In the first BusinessCraft post, I said the next step would be the hard part: the service tier. A few days later, craft-server can run two complete AL apps. You can publish them, sign in, open the role center, click through the pages, enter data, run actions, and see FlowFields update. Fri, 23 Oct 2026 06:43:15 +0000 https://twity.de/businesscraft-a-clean-room-business-central-in-rust After seeing SolidCraft and PhotoCraft, I kept asking myself the same question: If AI can rebuild those products using a clean-room approach, could it do the same for Business Central? Wed, 21 Oct 2026 19:01:44 +0000 https://twity.de/event-subscriber-performance The Situation With newer versions of Business Central, it's now possible to have multiple page and table extensions for the same objects within a single app. This flexibility allows us to build apps in a modular way and group functionality together thematically. Wed, 21 Oct 2026 19:01:44 +0000 https://twity.de/business-central-confirm-keeps-transactions-open Confirm looks harmless. It is just a yes/no dialog, right? Fri, 20 Mar 2026 00:00:00 +0000 https://twity.de/business-central-140-symbols Business Central 140 has two ways to work with symbols. Way 1 – The default way Tue, 25 Nov 2025 00:00:00 +0000 https://twity.de/business-central-26-callstack-performance-improvement Back in 2016, I wrote a blog post about how to check if your code was being called from a specific function using a try function and an empty error to access the callstack via GETLASTERRORCALLSTACK. For example, checking if you were inside a SaveReportAsPDF function. This technique was useful but came with a performance penalty. Tue, 25 Nov 2025 00:00:00 +0000 https://twity.de/business-central-tryfunction-performance-overhead While investigating the Business Central 26 CallStack performance improvements, I stumbled upon an interesting question: Does the TryFunction attribute add significant overhead when there are simpler alternatives? The answer might surprise you. Tue, 25 Nov 2025 00:00:00 +0000 https://twity.de/create-dynamics-nav-docker-images-with-a-custom-sql-database I created a simple Dockerfile and a Powershell script to create an custom docker image based on an offical Microsoft image. Based on an custom image you can create multiple Test and/or Development Environments with an minimum storage footprint. Tue, 25 Nov 2025 00:00:00 +0000 https://twity.de/debug-httpclient-request-inside-a-container If you use a BC Container to develop a WebService connetction, it is hard to analyse the traffic with only the Debugger. Fiddler Classic can be used to solve this problem. Tue, 25 Nov 2025 00:00:00 +0000 https://twity.de/debunking-a-decades-old-myth-in-business-central-efficiently-retrieving-grouped-data In many Business Central implementations, there’s a recurring need: extract a distinct set of document identifiers from a filtered set of detail records. Whether you’re working with sales lines, purchase lines, ledger entries, or custom transactional data — the goal is the same: identify which documents are involved based on line-level criteria. For years, a particular coding pattern has circulated as “best practice” in many organizations. It looks something like this: Tue, 25 Nov 2025 00:00:00 +0000 https://twity.de/performance-comparison-building-filters-with-textbuilder-in-al When working with AL (Dynamics 365 Business Central), we often need to dynamically construct complex filter strings. A common example is filtering users based on their User Security ID. For this purpose, AL provides the TextBuilder, a wrapper around the .NET StringBuilder, optimized for efficient string manipulation. Tue, 25 Nov 2025 00:00:00 +0000