---
title: "Connect Infor M3 to Claude: Automate Supply Chain and GL Workflows"
slug: connect-infor-m3-to-claude-automate-supply-chain-and-gl-workflows
date: 2026-11-13
author: Nidhi KN
categories: ["AI & Agents"]
excerpt: "A complete engineering guide to connecting Infor M3 to Claude via a managed MCP server. Learn to automate ERP operations, supply chain logistics, and GL workflows using AI."
tldr: "Connect Claude to Infor M3 using Truto's managed MCP server. This guide covers overcoming M3 API transaction complexities, configuring secure tool access, and executing multi-step ERP workflows."
canonical: https://truto.one/blog/connect-infor-m3-to-claude-automate-supply-chain-and-gl-workflows/
---

# Connect Infor M3 to Claude: Automate Supply Chain and GL Workflows


If your organization needs to connect Infor M3 to Claude to automate general ledger reconciliations, orchestrate supply chain logistics, or manage warehouse inventory, you need a [Model Context Protocol (MCP) server](https://truto.one/what-is-mcp-and-mcp-servers-and-how-do-they-work/). This server acts as the translation layer between Claude's function-calling capabilities and Infor M3's complex API transactions. You can either [build and maintain this infrastructure yourself](https://truto.one/the-hands-on-guide-to-building-mcp-servers-for-ai-agents-2026/), or use a managed integration platform like Truto to dynamically generate a [secure, authenticated MCP server URL](https://truto.one/managed-mcp-for-claude-full-saas-api-access-without-security-headaches/). If your team uses ChatGPT, check out our sibling guide on [/connect-infor-m3-to-chatgpt-manage-finance-orders-and-inventory/](https://truto.one/connect-infor-m3-to-chatgpt-manage-finance-orders-and-inventory/) or explore our broader architectural overview on [/connect-infor-m3-to-ai-agents-sync-erp-and-warehouse-operations/](https://truto.one/connect-infor-m3-to-ai-agents-sync-erp-and-warehouse-operations/).

Giving a [Large Language Model (LLM)](https://truto.one/what-is-mcp-model-context-protocol-the-2026-guide-for-saas-pms/) read and write access to a sprawling Enterprise Resource Planning (ERP) system like Infor M3 is a serious engineering challenge. You have to handle session lifecycles, map cryptic RPC-like transaction schemas to MCP tool definitions, and deal with strict concurrency limits. Every time an M3 administrator customizes a view or alters a mandatory field, you have to update your server code, redeploy, and test the integration.

This guide breaks down exactly how to use Truto to generate a secure, managed MCP server for Infor M3, connect it natively to Claude Desktop, and execute complex ERP and supply chain workflows using natural language.

> Want to give your [AI agents](https://truto.one/the-hands-on-guide-to-building-mcp-servers-for-ai-agents-2026/) secure, authenticated access to Infor M3 and 100+ other enterprise APIs? Let's talk about [managed MCP architecture](https://truto.one/managed-mcp-for-claude-full-saas-api-access-without-security-headaches/).
>
> [Talk to us](https://truto.one/book-a-demo/)

## The Engineering Reality of the Infor M3 API

A custom MCP server is a self-hosted integration layer. While the open MCP standard provides a predictable way for models to discover tools, the reality of implementing it against Infor M3's APIs is painful. M3 is not a standard RESTful CRUD application - it is an orchestration engine built around specific transaction programs (MI programs).

If you decide to build a custom MCP server for Infor M3, you own the entire API lifecycle. Here are the specific challenges you will face:

**RPC-Style Transaction Programs (MI Programs)**
Unlike modern APIs where you `GET /customers/123` or `POST /orders`, Infor M3 uses MI (Movex Interface) programs. You invoke specific programs like `CRS610MI` (Customer interface) or `OIS100MI` (Customer order interface) and pass highly specific transaction names like `LstLine` or `AddBatchHead`. An LLM has no context on this architecture. You must map these granular, non-intuitive transaction names into descriptive MCP tools with detailed schemas, or the LLM will hallucinate payloads and fail constantly.

**Mandatory Context: Company (CONO) and Division (DIVI)**
Infor M3 is heavily multi-tenanted at the business level. Almost every supply chain or GL transaction requires a `CONO` (Company Number) and `DIVI` (Division) parameter. If a user asks Claude to "update stock in the Berlin warehouse", Claude needs to know exactly which `DIVI` the Berlin warehouse belongs to. Your MCP tool schemas must strictly enforce these required parameters and guide the LLM to resolve them before making mutations.

**Strict API Quotas and 429 Rate Limiting**
Infor M3 environments often heavily throttle API concurrency to protect core ERP performance. When you hit these limits, M3 returns HTTP 429 (Too Many Requests). **Truto does not magically absorb or retry these errors.** Instead, Truto passes the HTTP 429 error directly back to the caller, normalizing the upstream rate limit data into IETF-standard headers (`ratelimit-limit`, `ratelimit-remaining`, `ratelimit-reset`). It is the responsibility of the MCP client (Claude) or your custom agent framework to read these headers and execute appropriate backoff and retry logic.

## Creating the Infor M3 MCP Server

Truto dynamically generates MCP tools based on the existing M3 integration documentation and configurations. To connect Claude to Infor M3, you first need to spin up an MCP server scoped specifically to the target M3 environment.

You can generate this server through the Truto UI or programmatically via the API.

### Method 1: Via the Truto UI

For ad-hoc tasks or internal support operations, generating the server through the dashboard is the fastest route:

1. Log in to your Truto dashboard and navigate to the **Integrated Accounts** page.
2. Select the connected Infor M3 account you want to expose to Claude.
3. Click the **MCP Servers** tab.
4. Click **Create MCP Server**.
5. Select your desired configuration (e.g., restrict to `read` methods only, or filter by `finance` tags).
6. Click **Generate** and copy the resulting MCP server URL (e.g., `https://api.truto.one/mcp/a1b2c3d4...`).

### Method 2: Via the Truto API

If you are building an AI product that dynamically spins up ERP assistants for your users, you should provision MCP servers programmatically.

Make an authenticated `POST` request to `/integrated-account/:id/mcp`. Truto validates the request, generates a secure, hashed token in its distributed key-value store, and returns a ready-to-use URL.

```bash
curl -X POST https://api.truto.one/integrated-account/YOUR_ACCOUNT_ID/mcp \
  -H "Authorization: Bearer YOUR_TRUTO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "Infor M3 Finance Assistant",
    "config": {
      "methods": ["read", "write", "custom"],
      "tags": ["gl", "invoicing", "ap_ar"]
    }
  }'
```

**Success Response:**

```json
{
  "id": "mcp-8f7e6d5c",
  "name": "Infor M3 Finance Assistant",
  "config": {
    "methods": ["read", "write", "custom"],
    "tags": ["gl", "invoicing", "ap_ar"]
  },
  "expires_at": null,
  "url": "https://api.truto.one/mcp/a1b2c3d4e5f6..."
}
```

## Connecting the MCP Server to Claude

Once you have the Truto MCP server URL, connecting it to Claude requires zero additional code. The URL itself acts as the secure transport and authentication layer.

### Method A: Via the Claude UI

If you are using Claude Desktop or Claude Web (depending on your enterprise plan tiers):

1. Open Claude and navigate to **Settings**.
2. Click on **Integrations** or **Connectors**.
3. Select **Add MCP Server** (or Custom Connector).
4. Paste your Truto MCP URL (`https://api.truto.one/mcp/...`).
5. Click **Add**. Claude will instantly execute a handshake, discover the M3 tools, and make them available in your chat context.

### Method B: Via Claude Desktop Configuration File

For power users and local development, you can configure Claude Desktop manually using the standard `claude_desktop_config.json` file. Because Truto MCP servers operate over standard HTTPS, you will use the `@modelcontextprotocol/server-sse` transport.

Open your config file (typically located at `~/Library/Application Support/Claude/claude_desktop_config.json` on macOS or `%APPDATA%\Claude\claude_desktop_config.json` on Windows):

```json
{
  "mcpServers": {
    "infor_m3_erp": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-sse",
        "https://api.truto.one/mcp/a1b2c3d4e5f6..."
      ]
    }
  }
}
```

Restart Claude Desktop. The Infor M3 tools will now appear as an attached integration in the UI.

## Hero Tools for Infor M3

The Truto MCP server translates Infor M3's MI programs into descriptively named, JSON-schema-backed tools. Here are some of the highest-leverage tools available for orchestrating ERP operations.

### Get Item Warehouse Balance

**Tool:** `infor_m_3_mms_200_mi_item_toolbox_get_itm_whs_bal`

Retrieves the exact stock balance for a specific item in a specific warehouse using the `MMS200MI/GetItmWhsBal` program. This is critical for pre-order validation and inventory audits.

> "Claude, check the warehouse balance for item 'WIDGET-001' in warehouse 'WH-NY'. I need to know if we have enough allocable stock to fulfill a 500-unit order."

### Add Internal Stock Movement

**Tool:** `infor_m_3_mms_850_mi_internal_stock_transaction_add_move`

Executes `MMS850MI/AddMove` to systematically transfer stock between locations or warehouses. The tool schema enforces required parameters like the reporting number and exact quantity.

> "Move 50 units of item 'WIDGET-001' from location 'A-10' to the quarantine location 'Q-01' in warehouse 'WH-NY' for inspection."

### List Customer Order Lines

**Tool:** `infor_m_3_ois_100_mi_customer_order_lst_line`

Runs `OIS100MI/LstLine` to fetch all line items associated with a specific customer order (`ORNO`). Crucial for order status tracking, fulfillment triage, and invoicing checks.

> "Pull all the line items for customer order 'CO-99882'. Summarize the status of each line, flag any that are backordered, and calculate the total order value."

### Approve Supplier Invoice

**Tool:** `infor_m_3_aps_110_mi_recode_and_approve_supplier_approve_invoice`

Triggers `APS110MI/ApproveInvoice` in the Accounts Payable module. This requires strict validation of the supplier number, invoice number, and year, transitioning an invoice into a state ready for payment.

> "Approve supplier invoice 'INV-2023-401' for supplier 'SUP-50' in division '100' for the current fiscal year. Confirm once the transaction is successful."

### Retrieve General Ledger Voucher Details

**Tool:** `infor_m_3_gls_200_mi_general_ledger_information_get_voucher_head`

Queries `GLS200MI/GetVoucherHead` to extract high-level financial tracking information for a specific GL voucher. Often used in period-close reconciliations or financial audits.

> "Fetch the voucher header for voucher number 'V-40592' in division '100' for year 2023. What is the accounting date and description attached to this voucher?"

### Retrieve Customer Basic Data

**Tool:** `infor_m_3_crs_610_mi_customer_get_basic_data`

Executes `CRS610MI/GetBasicData` to pull core CRM information (credit limits, pricing terms, addresses) for a specific customer number (`CUNO`).

> "Look up the basic data for customer 'CUST-881'. What are their current payment terms, and what is their designated currency?"

To view the complete inventory of Infor M3 tools, required parameters, and JSON schemas, visit the [Infor M3 integration page](https://truto.one/integrations/detail/inform3).

## Workflows in Action

By chaining these tools together, Claude can execute multi-step ERP workflows that would normally require an Infor M3 power user clicking through multiple dense application screens.

### Scenario 1: Order Triage and Inventory Verification

A customer service rep needs to check on an order that is delayed and figure out if they can fulfill it from another location.

> "Claude, check the status of customer order 'CO-5541'. Find the lines that are delayed. For the items holding up the order, check if warehouse 'WH-EAST' has allocable balance to fulfill it."

```mermaid
sequenceDiagram
    participant User as User
    participant Claude as Claude Desktop
    participant Truto as Truto MCP Server
    participant Upstream as "Infor M3 API"

    User->>Claude: "Check delayed lines on CO-5541..."
    Claude->>Truto: Call infor_m_3_ois_100_mi_customer_order_lst_line (ORNO: CO-5541)
    Truto->>Upstream: Execute OIS100MI/LstLine
    Upstream-->>Truto: Return order lines (Line 2 is delayed: WIDGET-X)
    Truto-->>Claude: JSON response
    Claude->>Truto: Call infor_m_3_mms_200_mi_item_toolbox_get_itm_whs_bal (ITNO: WIDGET-X, WHLO: WH-EAST)
    Truto->>Upstream: Execute MMS200MI/GetItmWhsBal
    Upstream-->>Truto: Return stock balance
    Truto-->>Claude: JSON response (Stock available)
    Claude-->>User: "Line 2 is delayed. WH-EAST has 400 units available..."
```

1. **List Order Lines**: Claude invokes `infor_m_3_ois_100_mi_customer_order_lst_line` to see the current status of all items on the order.
2. **Identify Bottleneck**: The LLM parses the schema and identifies which specific `ITNO` (Item Number) is backordered.
3. **Query Alternate Stock**: Claude invokes `infor_m_3_mms_200_mi_item_toolbox_get_itm_whs_bal` targeting a different warehouse (`WHLO`) to confirm availability.
4. **Report Back**: Claude informs the user of the exact stock levels and proposes next steps.

### Scenario 2: Financial Month-End Validation

A finance administrator needs to validate an unapproved invoice and push it through before closing the period.

> "Claude, check if supplier invoice 'INV-OCT-99' for supplier 'SUP-202' is valid. If the totals match our records, approve it."

```mermaid
sequenceDiagram
    participant User as User
    participant Claude as Claude Desktop
    participant Truto as Truto MCP Server
    participant Upstream as "Infor M3 API"

    User->>Claude: "Check and approve INV-OCT-99..."
    Claude->>Truto: Call infor_m_3_aps_200_mi_supplier_invoice_get_invoice (SINO: INV-OCT-99, SUNO: SUP-202)
    Truto->>Upstream: Execute APS200MI/GetInvoice
    Upstream-->>Truto: Return invoice details
    Truto-->>Claude: JSON response
    Claude->>Truto: Call infor_m_3_aps_110_mi_recode_and_approve_supplier_approve_invoice (DIVI: 100, SINO: INV-OCT-99)
    Truto->>Upstream: Execute APS110MI/ApproveInvoice
    Upstream-->>Truto: 200 OK (Approved)
    Truto-->>Claude: JSON response
    Claude-->>User: "Invoice validated and approved successfully."
```

1. **Fetch Invoice Detail**: Claude calls `infor_m_3_aps_200_mi_supplier_invoice_get_invoice` to ensure the invoice exists, hasn't been approved yet, and reviews the financial totals.
2. **Approve Invoice**: Satisfied with the state, Claude invokes the mutative `infor_m_3_aps_110_mi_recode_and_approve_supplier_approve_invoice` tool, supplying the mandatory division and supplier contexts to finalize the workflow.

## Security and Access Control

Giving AI agents unbridled access to an ERP system like Infor M3 is extremely risky. Truto provides multiple layers of security to ensure Claude operates within strictly defined boundaries.

*   **Self-Contained Token Authentication**: The URL generated by Truto contains a secure, cryptographically hashed token mapped to a specific M3 account environment. Truto does not store the raw token in its database.
*   **Method Filtering**: You can strictly limit the MCP server to read-only operations. Setting `config.methods: ["read"]` ensures Claude can execute tools like `LstLine` or `GetInvoice`, but requests to `AddMove` or `ApproveInvoice` will be rejected at the proxy layer before ever reaching Infor M3.
*   **Tag Filtering**: Scope the MCP server to specific business domains. Using `config.tags: ["finance"]` hides all supply chain and warehouse tools from the LLM, reducing the risk of hallucinations across different business units.
*   **Extra Authentication (`require_api_token_auth`)**: For enterprise deployments, you can enforce a second layer of security. By setting this flag to `true`, possessing the MCP URL is no longer enough - the calling client must also pass a valid Truto API token via the `Authorization` header, tying usage directly to authenticated personnel.
*   **Automatic Expiration (`expires_at`)**: Ideal for temporary auditing or contractor access. Set an ISO datetime, and the Truto infrastructure will automatically schedule a cleanup routine that completely destroys the token, its key-value cache, and its database record at the exact timestamp, ensuring zero lingering access.

Stop managing heavy integration middleware and API token lifecycles just to build AI features. Leverage managed MCP architecture to connect your agents securely to Infor M3.