BlogBlogA post on somebody's own site or a community platform. Nobody edits it after publication, so it dates from the day it was written.See every one →SAP Community
Claude ported ABAP functions to new API
A first-person account of using Claude Code, driven through the sapcli command line, to install and repair RFC function modules that let a CI pipeline control abapGitabapGitA Git client written in ABAP that runs inside the system, so objects are cloned, pulled and pushed without leaving it; with no package manager in ABAP, a cloned repository is how code is distributed.community org, abap and gCTS remotely, rather than treating git as a way to read ABAP source. Instead of trusting a local checkout, Claude read the abapGit login manager class and queried the target system's own type catalogue through sapcli, then used what it found to update a renamed API method and swap a TABLES parameter's structure for the table type BAPIRET2_T.
Where it sits
Explains
Source controlABAPSource controlKeeping source code and development objects in version control, comparing their revisions, and moving them between development environments. Managed delivery of changes belongs to [transport management](capability:change-promotion).RFC connectivityABAPRFC connectivityCalling ABAP function modules from outside the system over RFC, with destinations and connection pooling handled rather than hand-wired on the calling side.Agent access to your codeABAPAgent access to your codeLetting a coding agent read the project or the system you actually have, reach its model, its objects and its checks, and act on it. In file-based environments that works out of the box; complex systems need dedicated access capabilities. Whatever the environment, the agent also needs project- and framework-specific context, so it understands the thing in front of it rather than guessing from what it remembers of its training data. The transport is incidental: an MCP server, a language server or a CLI answer the same question, and what differs between them is how much of the real thing the agent can see. Distinct from [MCP servers](capability:mcp-servers), which is a protocol adapter on your own running service, and from [agent guidance](capability:agent-guidance), which is knowledge handed over as files rather than read from the thing itself.
Source
reachable
Who is behind it
jakub_filakauthor
Properties
About this work
For rfc-connectivity
Applies in
For agent-code-access
Applies in
In topics
The atlas is now in betaTopic, edition 1
onedevatlas is open for browsing. Find tools for SAP development, compare their documented capabilities, ask your AI assistant, and join a flight during TechEd week.
Group by29 of 29 pieces
Piece, what it offersStill applies
AI-assisted SAP development with MCPAI-assisted SAP development with MCPA Devtoberfest 2026 session (UI-41) that traces AI-assisted SAP development from pasting code into a chat window to coding agents with built-in connectors, and sorts the MCP servers around SAP development into SAP's own, the community's and the hosted ones, where the agent cannot change what the server allows. Four demos follow: GitHub Copilot alone explaining an ABAP report from a Git repository, @ui5/mcp-server reading an OpenUI5 sample app and converting it to TypeScript, mcp-sap-docs grounding Terraform files for a BTP subaccount the presenter had not written before, and arc-1 with Copilot in Eclipse tracing why a title longer than 40 characters is rejected and proposing the DDIC-allowed length instead. It ends on a skill that migrates an SAP Gateway project on an ECC system to RAP on S/4HANA step by step, and on a rule Marian Zeis gives for servers written for internal use: keep them read-only, because what the agent is short of is context.published 2026-10-16
ABAP + MCP: Let AI Do Real Development in Your SAP SystemABAP + MCP: Let AI Do Real Development in Your SAP Systemabap-adt-mcp is an open-source MCP server that gives an AI agent full ABAP development capability over ADT: it searches, reads, edits, activates and unit-tests objects, and runs ATC checks, on a connected S/4HANA Cloud or on-premise system, acting as the signed-in developer. It runs on abap-adt-api, the same REST client Eclipse's own ADT tooling uses, and sits beside SAP's own ADT MCP Server, shipped with ADT for VS Code and Eclipse under a different server key, and marianfoo's abap-docs, a read-only server over the ABAP Keyword Documentation and Clean ABAP. Each destination carries a policy — read-only, allowed packages, denied tables and tools — the server checks before every call, and an optional audit file logs each tool call with its outcome and policy gate.Willian_Saez, published 2026-09-03
SAP's API Policy on AI Agents: What It Prohibits, Allows, and Leaves OpenSAP's API Policy on AI Agents: What It Prohibits, Allows, and Leaves OpenReading SAP's API Policy v.4.2026a and its FAQ against the reference architectures, the piece narrows the widely repeated claim that SAP bans AI to what Section 2.2.2 actually restricts: an agent planning and chaining API calls outside an SAP-endorsed route, closed off further by Section 3's block on bypassing API Controls through custom code. It compares the endorsed and allowed paths — the MCP Gateway on SAP Integration Suite reaching S/4HANA and ECC through RFC-based back ends under a 15-tool, 200,000-token limit, SAP-provided MCP servers through Joule Studio, the A2A protocol, customer-operated MCP servers allowed under FAQ Question 56, and the ADT MCP Server, whose 18 tools work only on development artifacts and are documented as not intended for productive use. It leaves open whether Section 2.2.2 covers ABAP code that calls a model from inside the system, since enforcement is defined at the API-traffic level rather than by a list of tools.published 2026-08-31
Running AI agents against SAP ECC 6.0: lessons from building an in-system MCP serverRunning AI agents against SAP ECC 6.0: lessons from building an in-system MCP serverNicolasHernandez recounts building and running, over two years, an MCP server written in plain ABAP behind a single ICF node, for SAP ECC 6.0 and S/4HANA on-premise customers that the ADT MCP Server and SAP Joule for Developers, ABAP AI capabilities do not reach. Authorization runs as the calling user rather than a technical RFC user, a choice forced by a customer security team after an earlier version used a technical RFC user, and a later security review found a display-authority check applied uniformly across every write endpoint. The failure modes that cost the most time sat in RFC connectivity itself: RFC_READ_TABLE's empty-table exception collapsed into a false success, a where-used filter was applied only after the row limit, and BAPI calls treated an empty string and an absent parameter as different, silently wrong inputs.NicolasHernandez, published 2026-08-28
ABAP development tools for Visual Studio Code: Version 1.1 releasedABAP development tools for Visual Studio Code: Version 1.1 releasedVersion 1.1 of ABAP development tools for Visual Studio Code adds two tools to the extension's local ADT MCP Server: a unified, git-like diff for a transport request, and a runner for ABAP Test Cockpit checks, both meant for an agent to call rather than a person to click through. Both are new instances of what agent access to your code already covers for ABAP — reading and acting on a real system through ADT — reaching now into a transport's changes and a check run rather than only source and objects.thomasalexander_ritter, published 2026-07-21
Using RFC Function Modules and BAPIs in SAP Build Process AutomationUsing RFC Function Modules and BAPIs in SAP Build Process AutomationWalks through calling an S/4HANA BAPI (BAPI_BILLINGDOC_CREATEMULTIPLE, to create a billing document) from an SAP Build Process Automation action: mapping the virtual host to the internal system in SAP Cloud Connector over the RFC protocol and exposing the needed function modules, then creating an RFC-type destination in the BTP cockpit with the virtual message server and SMLG logon group. Once those two are in place, SAP Build lists the exposed BAPIs and RFCs for use in an action.MrRaj, published 2026-07-09
How to Connect Claude Code to ABAP with Zero-Config MCPHow to Connect Claude Code to ABAP with Zero-Config MCPWalks through wiring Claude Code, via its VS Code extension, to a live SAP system through an ABAP remote-filesystem extension built by Marcello Urbani and its built-in MCP server — a single toggle rather than a hand-rolled Node.js setup — so the agent searches, reads, writes, activates and assigns transports for ABAP objects over the same ADT REST API Eclipse uses, instead of guessing at tables and function modules it has never seen. The demo carries one plain-English prompt through to a real, activated ABAP program on a live S/4HANA system, including a transport-request dialog Claude worked through on its own.Nibedita, published 2026-07-05
Creating an SAP SD Billing Document Using a BAPI in SAP Build and Accessing It Through 'Joule Work'Creating an SAP SD Billing Document Using a BAPI in SAP Build and Accessing It Through 'Joule Work'Walks through the two pieces of connectivity a SAP Build Process Automation action needs to call an on-premise BAPI: mapping the virtual host to the internal S/4HANA host in Cloud Connector over the RFC protocol, and creating an RFC-type destination in the BTP cockpit so BAPI_BILLINGDOC_CREATEMULTIPLE becomes a selectable action. The resulting process creates an SD billing document from a sales document number and is reached through SAP Build Work Zone, including from the Joule Work mobile app.MrRaj, published 2026-06-29
Using Claude for SAP ABAP development on RFC-only / SAProuter systems (even ECC R/3)Using Claude for SAP ABAP development on RFC-only / SAProuter systems (even ECC R/3)vibing-steampunk gives Claude read, search, edit and check access to ABAP source over ADT's REST API, but some SAProuters permit only SAP's native RFC and DIAG routes and block raw HTTP to the ICM, so that link can't reach them even though Eclipse ADT can. Eclipse gets through because it tunnels ADT over RFC through the standard SADT_REST_RFC_ENDPOINT function module instead of HTTP, a path the post traces by capturing a live Eclipse session. adt-rfc-bridge reproduces that tunnel as a local HTTP-to-RFC proxy built on PyRFC, put in front of vsp, and the author reports it working on both S/4HANA and classic ECC/R/3 systems where Eclipse ADT already connects.enrico_andreoli, published 2026-06-09
The Future of ABAP is Here: VS Code ADT, Zero-Config MCP, and AI Co-pilotsThe Future of ABAP is Here: VS Code ADT, Zero-Config MCP, and AI Co-pilotsA walkthrough of ABAP Development Tools for VS Code's general-availability release: connecting to an on-premise or BTP ABAP system, editing classes, CDS and RAP objects, and turning on the extension's built-in ADT MCP Server. Enabled, it lets a co-pilot such as GitHub Copilot or SAP Joule for Developers, ABAP AI capabilities read code, trace dependencies, and run ABAP Unit and ATC checks against the real system rather than guessing from training data.lpodile, published 2026-06-01
ARC-1 with Copilot Studio: SAP System Context Beyond DevelopersARC-1 with Copilot Studio: SAP System Context Beyond DevelopersTakes the BTP-deployed ARC-1 endpoint into Microsoft Copilot Studio, added as an existing MCP server with OAuth 2.0 against XSUAA and published to Teams or Microsoft 365 Copilot, so SAP system context reaches project roles that do not work in an IDE. The test agent combines SharePoint specifications, Jira tickets and mcp-sap-docs with ARC-1 in six scenarios: a patch for a Jira bug proposed before it is applied, the impact of widening a domain from CURR 13,2 to CURR 23,2, a two-layer CDS view built from a specification, an ATC and abaplint quality report, a short dump diagnosis, and a clean core check that proposes released successors for direct selects on USR02 and BUT000. The access path and security model are those of the BTP part unchanged; the advice is to start this audience read-only, although the showcase itself enabled the read and write tools.published 2026-05-04
ARC-1 with Copilot Studio: SAP System Context Beyond Developers
arc-1 has been through 3 major lines since this was published: 0.8 (2026-05), 0.9 (2026-05), 1 (2026-07). Affects A recipe, Runnable code.
Introducing ARC-1: A Secure ADT MCP Server for Enterprise SAP DevelopmentIntroducing ARC-1: A Secure ADT MCP Server for Enterprise SAP DevelopmentWhy ARC-1 exists beside earlier ADT MCP servers such as vibing-steampunk, fr0ster/mcp-abap-adt and dassian-adt: one centrally deployed instance per SAP system instead of a server on each developer laptop, with the MCP client to ARC-1 hop and the ARC-1 to SAP hop authenticated separately. It sets out the restrictive defaults (read-only, no free SQL or named table preview, writes confined to $TMP), the layering in which ARC-1's configuration, the user's role and SAP's own authorisation must all allow an action, Principal Propagation so SAP sees the real user, and audit events to the SAP Audit Log service; that is tool governance as much as agent access to your code. It leaves the BTP setup to the next part, and places ARC-1 beside SAP's ADT MCP Server, which SAP's configuration guide describes as a local HTTP server hosted by the IDE, and beside SAP API Policy 4.2026a, where ARC-1's stated position is to stay close to documented ADT behaviour and ask SAP before production use.published 2026-04-27
ABAP and Agentic AI: The Hidden Problem in Real ProjectsABAP and Agentic AI: The Hidden Problem in Real ProjectsAI in SAP development splits on three questions, how the model gets context, where writing happens and who controls the setup: UI5 and CAP work in local files where git, reviews, tests and pipelines already gate a change, while on-stack ABAP writes land directly in a shared development system. Six patterns follow, framed after a paper by Lars Hvam, from AI in the IDE to off-stack development with abapGit, and the post settles on a hybrid where the agent reads the system over ADT or MCP and writes through a gated git flow. Read access alone is put at maybe 80 percent of the work, and what agent access to your code still lacks is named as tool governance: read-only defaults, package restrictions, blocking free SQL, per-user identity and auditing.published 2026-04-22
How I Use AI for Development and Why Context MattersHow I Use AI for Development and Why Context MattersPart one of the AI ABAP development series traces a move from pasting ChatGPT output and error messages back and forth to tools that search, read docs and inspect files themselves, and holds that the context around a model decides more in real projects than benchmark results do. In SAP work the grounding comes from mcp-sap-docs, which brings SAP Help, GitHub repositories, style guides and DSAG guidelines into the session, and context for changing a class also means the tables it uses, the classes it calls and similar implementations. Agentic autonomy is a slider set per project, with the time saved on typing moved into planning and review, and the post stops before ABAP: SAP's MCP servers for UI5, CAP and Fiori (@ui5/mcp-server, @cap-js/mcp-server, @sap-ux/fiori-mcp-server) sit in off-stack work that git and pipelines already gate, and the harder ABAP case is left to the next part.published 2026-04-20
Claude Code via MCP: Poor man's Joule, or a practical tool?Claude Code via MCP: Poor man's Joule, or a practical tool?The author drives Claude Code against a live ABAP system through vibing-steampunk, an ADT-to-MCP bridge that locks and unlocks objects on the agent's behalf so the model can concentrate on the change: extending an ALV report, turning its SELECT into a CDS view, and answering ad-hoc questions over the report's own data. Where Claude got it wrong — a RAP scaffold missing the fields RAP's locking mechanism needs, ORDER as a reserved word — the piece asks where that knowledge would go as a Skill, and concludes Skills' filesystem basis has no home in a system reached only through MCP.k1000, published 2026-03-08
Building an Enterprise-Ready SAP AI Agent with Open SourceBuilding an Enterprise-Ready SAP AI Agent with Open SourceA self-hosted chat agent for SAP systems: LibreChat as UI and orchestrator with Entra ID sign-in and SharePoint connected, a local LLM through Ollama, and two MCP servers, mcp-sap-docs for public documentation and the ADT MCP server vibing-steampunk for the system itself. The ADT server runs in its read-only mode under a technical user with display authorisations only, so the agent can find a function module and pull its source, or locate a RAP business object with its behaviour definition and projection view, but cannot change anything. Two workflows show it, explaining what BAPI_DISPUTE_CREATE does in one system and planning a RAP action from a PDF specification, where the generated ABAP is copied into Eclipse by hand; the full setup is in the marianfoo/llm-client-sap-system-integration-sharepoint repository.published 2026-03-03
Extract Rev-Trac requests by custom program and Rev-Trac APIExtract Rev-Trac requests by custom program and Rev-Trac APIA custom ABAP report that does a full-text search across custom long-text fields of Rev-Trac change requests — a search the change-management tool has no built-in feature for — by calling Rev-Trac's own RFC-enabled function modules from a separate connected ABAP system. It walks through the mechanics of RFC connectivity on the ABAP side: looking up the RFC destination at runtime from a system table via a remote-enabled function module, then calling further remote function modules with CALL FUNCTION ... DESTINATION, including the read/update APIs' parameter-naming convention and their commit-on-connection-end behaviour.published 2025-12-30
Pattern Function for RFCPattern Function for RFCA custom ABAP Editor pattern, defined once under SE38 > Utilities > More Utilities > Edit Pattern as Z_RFC_FUNCTION, that generates a CALL FUNCTION ... DESTINATION block for a chosen remote-enabled function module: an EDITOR_EXIT function on the calling system reaches the target system over RFC to fetch that function's generated source, then inserts the DESTINATION clause before handing the pattern back to the editor. It automates writing the RFC call itself rather than explaining RFC destinations as a concept, and the destination name in the sample is hardcoded to the author's own system.ykaldirim, published 2025-12-02
Using Communication Targets for Outbound RFC Communication in ABAPUsing Communication Targets for Outbound RFC Communication in ABAPWalks through calling a remote-enabled ABAP function module through a communication target instead of a direct RFC destination: on-premise, the APPLDEST transaction creates an application destination (client, CPIC type, host from SM51, authentication); in the cloud, saving a communication arrangement for an outbound-RFC communication scenario creates one automatically. ABAP code reaches the function with CALL FUNCTION (...) IN REMOTE SESSION, naming the application_destination parameter when a communication target has more than one assigned destination, and the piece walks a worked call to RFC_SYSTEM_INFO.Nikolina_MH, published 2025-11-10
Modernizing RFC/BAPI-based Integrations for a Clean Core with SAP Integration SuiteModernizing RFC/BAPI-based Integrations for a Clean Core with SAP Integration SuiteWalks a BAPI-based interface from SAP PO through three paths to SAP Integration Suite: lift-and-shift, which keeps the RFC connection to the ABAP system as-is and calls it through Integration Suite's RFC adapter; protocol modernization, which re-exposes the same BAPI as a SOAP web service; and clean core modernization, which replaces it with an SAP-managed API surfaced by the migration assessment report. Follows a BAPI_MATERIAL_AVAILABILITY interface through the first and third paths, showing the generated RFC-adapter iFlow against the OData API found for it.arunmaarirajha_kv, published 2025-10-10
Configuring SAP Cloud Integration for an IBP to S/4HANA (on prem / private cloud) integrationConfiguring SAP Cloud Integration for an IBP to S/4HANA (on prem / private cloud) integrationWalks through creating the two BTP destinations an Cloud Integration iflow needs for an IBP-to-S/4HANA integration: one of type RFC with a WebSocket RFC server host and port for the IBP tenant, and one of type RFC with the on-premise proxy type, a Cloud Connector location ID and a virtual host for the S/4HANA system. It then has the reader copy SAP's prebuilt IBP integration packages into the Design workspace and deploy every reusable iflow in them before a business iflow can call the S/4HANA extractor through SAP Connectivity service.SofianePebre, published 2025-08-27
Consume ABAP RFC Function Modules in CAPConsume ABAP RFC Function Modules in CAPCalling an existing RFC function module from CAP instead of asking somebody to build an OData service for it — which is the actual decision, since the alternative is custom development on the ABAP side for a function that already works.published 2025-03-28
Communicate from a Java Application to ABAP via WebSocket RFC using JCo - Migration GuideCommunicate from a Java Application to ABAP via WebSocket RFC using JCo - Migration GuideWalks a JCo setup from classic CPIC-based RFC to WebSocket RFC: swap the application- or message-server logon properties for jco.client.wshost and jco.client.wsport, and implement DestinationDataProvider's getSSLContext (and, for mTLS, getClientCertificate) since the new connection runs over TLS. It covers building the PKI trust on both sides — a local PKCS12 keystore for the Java side, STRUST's SSL-Server Standard certificate exported and imported for mutual trust on the ABAP side — and notes that on BTP, JCo paired with the Destination service already implements this via the Connectivity service, so the custom SSLContext work can be skipped there.simon_luser, published 2025-01-21
Recommendations for Customers on using the Direct Push-Based IntegrationRecommendations for Customers on using the Direct Push-Based IntegrationExplains SAP's direct push-based integration, where two ABAP systems (SAP BTP ABAP environment, SAP S/4HANA Cloud or SAP S/4HANA on-premise) exchange business events by calling each other over RFC connectivity, carried over CPI-C or WebSocket depending on the release, through a sender channel on one side and a matching receiver channel on the other that lists which events it wants. It recommends the mechanism only between systems in the same location or subaccount, without public exposure, and for prototyping event-driven scenarios before moving to Event Mesh or SAP Integration Suite, Advanced Event Mesh at a larger scale.sandra_thimme, published 2024-08-09
WebSocket RFC to Cloud Using SAP Business ConnectorWebSocket RFC to Cloud Using SAP Business ConnectorWalks through wiring RFC connectivity between an on-premise ABAP system and a cloud ABAP system (SAP S/4HANA Cloud or Steampunk) through SAP Business Connector, which tunnels classic RFC over a WebSocket/HTTPS connection past firewalls. Covers the RFC destination of type T on the source system, the Communication User, Communication Scenario and Communication Arrangement needed on the cloud side to allow-list the function modules being called, and the three configuration steps on the Business Connector itself, closing with a list of common connection errors and their fixes.Ulrich_Schmidt1, published 2022-10-17
How to use SAP Data Intelligence with SAP Cloud ConnectorHow to use SAP Data Intelligence with SAP Cloud ConnectorWalks through reaching an on-premise network from SAP Data Intelligence Cloud with Cloud Connector: installing the client, assigning the Cloud_Connector_Administrator role, registering the subaccount, and mapping on-premise systems as ABAP, HANA or HTTP back-ends in Data Intelligence's Connection Manager. For an ABAP back-end it names the function-module whitelist and the gateway port format RFC access needs, per SAP Note 2835207.Former Member, published 2021-03-16
Patterns for using LLMs in ABAP developmentPatterns for using LLMs in ABAP developmentLars Hvam compares eight ABAP development setups: assistance in SE80 or Eclipse, virtual files and MCP over ADT, a centrally managed MCP service, sandboxes, local Git, Git with read-only system context, and temporary ABAP systems for development and CI. The overview describes where source changes, review and system access happen, including abapGit synchronization and abaplint checks. It is dated March 2026; its risk, cost and autonomy ratings are the writer’s assessments.
OData to outcomes—Build AI-enabled SAP Fiori apps using SAP Fiori elementsOData to outcomes—Build AI-enabled SAP Fiori apps using SAP Fiori elementsA Fiori elements app built through SAP's MCP servers: the OData V4 service comes from the MCP server for RAP, which the atlas holds as the ADT MCP Server, or from @cap-js/mcp-server for CAP, and the UI from @sap-ux/fiori-mcp-server, with annotations and actions added before the app is tied to SAP's AI features. Agent access to your code on both the service and the UI side; SAP's abstract names the servers and the steps and says nothing about which AI features or which agent host. A TechEd 2026 session (Thursday 29 October, Berlin), presented by Benedikt Schoelch, Sebastian Steinhauer, Sebastian Werner and Stefan Engelhardt, written here from SAP's abstract; the recording is not yet published.
Spec first: The disciplined way to develop ABAP with agentsSpec first: The disciplined way to develop ABAP with agentsSpec-driven ABAP development with a new AWS Toolkit for Eclipse plug-in powered by Kiro, in SAP's words, working inside ABAP Development Tools for Eclipse: SAP's abstract says it reads the codebase, helps with new features, explains legacy code, refactors and generates tests, for S/4HANA modernisation or a new business feature. It answers agent access to your code from inside Eclipse; the plug-in itself is not yet in the atlas, and the abstract does not say how it reaches the ABAP system. A TechEd 2026 session (Tuesday 27 October, Berlin), presented by Jon Friesen and Stephan Kremer, written here from SAP's abstract; the recording is not yet published.
Details
Graph
Source controlcapability, core and community
RFC connectivitycapability, core and community
Agent access to your codecapability, core and community
SAP Communitypublishing source
SAP Communityabap-development-tag
SAP Communityagentic-ai-tag
Source
Type
blog
Published on
Host
community.sap.com
First seen
History
- Entered the atlasDiscovered via SAP Community · abap-development-tag, SAP Community · agentic-ai-tag.
For your agent
- Ref
content:claude-ported-abap-functions-to-new-api- JSON
- /content/claude-ported-abap-functions-to-new-api.json
- MCP
- Connecting an agent