TL;DR: SAP TechEd lab AD262 (Agentic CAP: Build MCP Servers & Enterprise AI Agents) is a great introduction to @cap-js/mcp, @cap-js/ai and @cap-js/agents. I rebuilt it outside the pre-provisioned workshop sandbox: from scratch in local VS Code with M...
No Python, no microservice. Just a CAP annotation, a system prompt, and an LLM — and suddenly your Fiori app can answer questions about your data.
Fiori Elements V4 makes building a List Report surprisingly easy. Define your CDS model, add the right annotations, and most of the UI is already there.The problems usually start when you need to go beyond the standard behavior.A custom action doesn'...
Part 1 got a CAP service talking to real HANA Cloud data and locked it behind OAuth — a genuine, secured OData API, reachable from Postman. Good enough to demo, but still just a human typing requests by hand.Part 2 extends that model with the airline...
Plenty of tutorials show you how to build a CAP service. Plenty more show you how to secure an API in Integration Suite. Almost none show you what happens when you connect the two — because that's where it breaks.This post does exactly that: modeling...
Hi Community,I’m working on a SAP CAP-based application and need guidance on how to implement authentication and authorization for SAP S-Users / customers.Could someone please share the recommended approach or any sample implementation for:Authentica...
Learn how to expose a SOAP endpoint in a CAP-based Node.js application — including request validation, duplicate-order prevention, and enterprise SOAP fault handling.
In this blog post, I share a practical enterprise scenario and discuss two approaches I've encountered when working with SAP Datasphere and SAP Analytics Cloud. You'll see how clear platform responsibilities can help build a more scalable, maintainab...
Learn how to securely connect an SAP CAP Node.js application on SAP BTP Cloud Foundry to a private PostgreSQL database using SAP Cloud Connector, the Connectivity service, TCP mapping, and JWT-authenticated SOCKS5. This end-to-end guide covers Destin...
BW4HANA 2.0 Version New Feature
Week 4 — UI & CAP MCPChallenge series: Snake & Ladder Developer Challenge | Week 4 of 4 Dates: 27–31 July 2026
Stop redrawing whiteboard sketches by hand. This open source CAP app takes a photo of your architecture sketch and generates an official SAP BTP Solution Diagram — complete with SAP service icons, boundary zones, and a built-in architecture review — ...
Week 3 — Multiplayer & EventsA single-player Snake & Ladder game is a solitaire puzzle. The real game is multiplayer — taking turns, watching opponents climb ladders, celebrating when a snake bites someone ahead of you.This week you add a second play...
Searching for SFTP directories, HTTP endpoints, ProcessDirect endpoints, or credentials across multiple SAP Integration Suite integration flows can be time-consuming. This blog introduces CPI Explorer, an open-source Chrome extension that indexes Int...
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This week you implement the bound action handlers that power the game: dice rolling, position calculation, and snake/ladder logic. CAP's @flow.status machinery will automatically enforce that moves only happen in the right state — your job is to writ...
Sharing data between two SAP CAP projects? Don't duplicate it — connect them.
What you will get from this blogIn this blog, you’ll grasp how Business Information Extraction (BIE), powered by generative AI in SAP Service Cloud Version 2, turns unstructured service inputs via emails into structured, case-ready data. Btw, for sa...
5 Things I Wish I Knew Before Starting ABAP on SAP S/4HANA
Week 1 — Model the BoardChallenge series: Snake & Ladder Developer Challenge | Week 1 of 4 Dates: 6–12 July 2026The SetupEvery game needs a board. Before any snake can bite or ladder can lift, you need a data model that captures the state of a game ...
link link SAP Developer ChallengeSnake & Ladder with SAP CAP Status Transition FlowsWelcome to the July 2026 SAP Developer Challenge — a 4-week hands-on challenge where you build a multiplayer Snake & Ladder game as a fully functional SAP CAP servic...
Well, it's the end of the month, which means time for a wrap up of the Developer Challenge we've just had. It's been a lot of fun for us to create the questions and see how much you've all participated, and, from your comments, how much you've also e...
The CDS compiler is a very capable mechanism and can advise and warn us if we present questionable design choices in our models. It can even refuse to continue in extreme circumstances.Let's say we have a Book entity defined thus:entity Book { key ...
There is great support for CAP development in IDEs such as VS Code and IntelliJ. Moreover, because the editor features for CDS are made available in the form of a language server (using the Language Server Protocol or LSP), they can also be used in o...
The Internet Engineering Task Force (IETF) is the premier standards development organisation for the Internet. One of the ways that their work finds its way to the public in general and to engineers and techninians in particular is via documents, spe...
When thinking about schema evolution and starting to plan changes while still in development, the "drop-create" strategy is common.The cds deploy command will generate the appropriate SQL/DDL statements to effect schema changes. Most commonly this co...
As in most contexts, there are some name restrictions in the underlying database systems, with regards to unusual or special characters, or reserved words. When you use names like this in your CDS models they are escaped when they're converted to the...
When embracing local-first development and using cds watch, we're actually using a convenience shortcut for:cds serve all --with-mocks --in-memory?That --with-mocks option for cds serve is described thus:--with-mocks Use this in combination with t...
In an earlier question in this challenge, we looked at the managed aspect in the context of common and reusable definitions. This aspect causes each entity to which it is assigned to gain four new elements thus:createdAt : Timestamp @cds.on.insert :...
When building our CDS model, we describe, amongst other things:typesaspectsentitiesservicesThe CDL for each of these objects is clear and simple. That's because of the intent behind the design of CDS as a whole, but also because there's a particular ...
The cds REPL is a powerful facility that helps us explore and debug. It's based on the regular Node.js REPL, which has a number of REPL-level commands:; node Welcome to Node.js v24.15.0. Type ".help" for more information. > .help .break Sometimes ...
At one level, the CDS family of languages cover definitions, queries and expressions, in the form of CDL, CQL and CXL respectively. Each of these languages have a human-readable form and a machine-readable form. For example, while CDL is the human-re...
Greetings earthlings!We're part way through now at the end of this month's SAP Developer Challenge on CAP knowledge, and you folks seem to be having a good time and doing well! Here are some stats - updated Sun 28 Jun at 1530 BST (GMT+0200).We've had...
When defining a service, it's common to expose targets that are related. The classic example might be books and authors:using bookshop as my from '../db/schema'; service AdminService { entity ListOfBooks as projection on my.Books excluding { price...
When modelling with CDS and its family of languages we have access to a wide selection of clean and concise declarative syntax. In the expressions area there are expressions (and in particular path expressions) and also a certain style of filter.Thes...
Within the CDS family of languages we have CXL, the CDS Expression Language. In the context of CDS models and queries, CXL brings the ability to use expressions for describing calculations, declaring conditions, and more, all of which enriches the CD...
Within the topic of security and data privacy and specifically within security, we have:Authentication: verification of a user's identityAuthorization: checking what level of access a given user hasIn other words, "who" a user is (authentication), an...
The "effective" configuration for a given project is made up from values that can be taken from a number of different source locations, shown here:There are built-in defaults, user-specific defaults, static and user-specific project settings and more...
At the CAP-level, support for multiple databases is available (SQLite, Postgres, HANA, H2). This support includes standard operators and standard functions, portable across the database runtimes. There are various functions in this set, across differ...
In domain modelling, we can have name prefixes for the components of our models. They're optional, but useful, especially if reusability is a factor. This prefixing can be defined with either the namespace or the context directives, or a combination ...
I need clarification on how the task-based outbox processing behaves in a horizontally scaled deployment with multiple application instances.
Among the CDS annotations for declaring constraints when modelling, there are a handful that can be used to drive behaviour and restrictions in Fiori UIs, by causing the generation of appropriate annotations in the service's metadata.One of these ann...
A set of common types and aspects is great, and our models are the better for using them. But what about actual data? There are some types, which are defined as associations to entities, and it would be useful to be able to have access to and load in...
CDS provides a set of common types and aspects for reuse in CDS models, so we can avoid reinventing the wheel each time. Moreover, we end up with concise models that are easier to understand, and our models are more interoperable.In this set, there's...
SAP Developer Challenge - CAP KnowledgeUpdate: This challenge is now at an end - read the summary and wrap up post for final facts and figures!Welcome to the Developer Challenge for this month of June 2026. You can guess from the "CAP Knowledge" titl...
A write-up of ODATANO, a CAP plugin I've been building that exposes the Cardano blockchain as three OData V4 services.SAP records are trusted but mutable. Anchoring them as immutable proofs has traditionally meant Hyperledger Fabric, a consortium, an...
If you have worked with SAP BTP before, you are likely already familiar with the basics of SAP Cloud Application Programming Model (CAP) development, at least within a Trial Account. Rather than starting from the very beginning, this blog assumes a f...
Setting up CAP projects is repetitive, error-prone, and time-consuming.CAP Initializr eliminates all of that—so you can focus on building, not configuring.
Learn how to implement dynamic subaccount-based routing in applications built with the SAP Cloud Application Programming Framework on SAP Business Technology Platform. This blog explains how to use SAP BTP Destination Service together with a catalog ...
A SAP architect shares an honest take on CAP, the competence challenge, and the reality of building side-by-side extensions — including where the APIs end and the creativity begins.
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CAP + Fiori Elements V4: The List Report Extension...
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