SAP Business One Python API Docs | dltHub

SAP Business One Service Layer is an OData v4 REST API that provides programmatic access to SAP Business One business objects and data functions. The REST API base URL is https://<host>:<port>/b1s/v2 and authentication requires a POST login to retrieve a B1SESSION session cookie which is then used in headers for subsequent requests.

dlt is an open-source Python library that handles authentication, pagination, and schema evolution automatically. dlthub provides AI context files that enable code assistants to generate production-ready pipelines. Install with uv add "dlt[hub]" and start loading SAP Business One data in under 10 minutes.

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What data can I load from SAP Business One?

Here are some of the endpoints you can load from SAP Business One:

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How do I authenticate with the SAP Business One API?

Authentication is session-based by sending a POST request to the /Login endpoint with CompanyDB, UserName, and Password in the JSON body. Upon success, the server returns a B1SESSION cookie in the Set-Cookie response header, which must be included in subsequent requests to authorize API calls.

1. Get your credentials

The SAP Business One Service Layer does not use static API keys. Authentication is session-based. To obtain access, perform a POST request to the /Login endpoint using your credentials. 1. Ensure you have the Service Layer URL (usually https://

/b1s/v2/), company database name, username, and password. 2. POST the credentials in JSON format to the Login endpoint: {"CompanyDB": "<db_name>", "UserName": "", "Password": ""}. 3. The API will respond with a 200 OK status and a B1SESSION cookie in the response header (along with a SessionId in the body). 4. Use this B1SESSION cookie in the header of all subsequent API requests to maintain the session. Sessions typically expire after 30 minutes of inactivity.

2. Add them to .dlt/secrets.toml

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[sources.sap_business_one_source]
base_url = "https://your-sap-server:50000/b1s/v2"
company_db = "YourCompanyDB"
username = "manager"
password = "your_password"

dlt reads this automatically at runtime — never hardcode tokens in your pipeline script. For production environments, see setting up credentials with dlt for environment variable and vault-based options.

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How do I set up and run the pipeline?

Set up a virtual environment and install dlt:

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uv init
uv add "dlt[hub]"

1. Install the dlt AI harness:

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uv run dlthub ai init --agent <your-agent> # <agent>: claude | cursor | codex

This installs project rules, a secrets management skill, appropriate ignore files, and configures the dlt MCP server for your agent. Learn more →

2. Install the rest-api-pipeline toolkit:

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uv run dlthub ai toolkit install rest-api-pipeline

This loads the skills and context about dlt the agent uses to build the pipeline iteratively, efficiently, and safely. The agent uses MCP tools to inspect credentials — it never needs to read your secrets.toml directly. Learn more →

3. Start LLM-assisted coding:

Use /find-source to load data from the SAP Business One API into DuckDB.

The rest-api-pipeline toolkit takes over from here — it reads relevant API documentation, presents you with options for which endpoints to load, and follows a structured workflow to scaffold, debug, and validate the pipeline step by step.

4. Run the pipeline:

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uv run python sap_business_one_pipeline.py

If everything is configured correctly, you'll see output like this:

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Pipeline sap_business_one_pipeline load step completed in 0.26 seconds
1 load package(s) were loaded to destination duckdb and into dataset sap_business_one_data
The duckdb destination used duckdb:/sap_business_one.duckdb location to store data
Load package 1749667187.541553 is LOADED and contains no failed jobs

Inspect your pipeline and data:

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uv run dlthub show

This opens the Pipeline Dashboard where you can verify pipeline state, load metrics, schema (tables, columns, types), and query the loaded data directly.

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Python pipeline example

This example loads /Login and /Logout from the SAP Business One API into DuckDB. It mirrors the endpoint and data selector configuration from the table above:

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import dlt
from dlt.sources.rest_api import RESTAPIConfig, rest_api_resources

@dlt.source
def sap_business_one_source(credentials=dlt.secrets.value):
    config: RESTAPIConfig = {
        "client": {
            "base_url": "https://<host>:<port>/b1s/v2",
            "auth": {"type": "api_key", "api_key": credentials, "name": "Cookie"},
        },
        "resources": [
            {"name": "orders", "endpoint": {"path": "Orders", "data_selector": "value"}},
            {"name": "business_partners", "endpoint": {"path": "BusinessPartners", "data_selector": "value"}}
        ],
    }
    yield from rest_api_resources(config)


def get_data() -> None:
    pipeline = dlt.pipeline(
        pipeline_name="sap_business_one_pipeline",
        destination="duckdb",
        dataset_name="sap_business_one_data",
    )
    load_info = pipeline.run(sap_business_one_source())
    print(load_info)

To add more endpoints, append entries from the resource table to the "resources" list using the same name, path, and data_selector pattern.

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How do I query the loaded data?

Once the pipeline runs, dlt creates one table per resource. You can query with Python or SQL.

Python (pandas DataFrame):

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import dlt

data = dlt.pipeline("sap_business_one_pipeline").dataset()
sessions_df = data.orders.df()
print(sessions_df.head())

SQL (DuckDB example):

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SELECT * FROM sap_business_one_data.orders LIMIT 10;

In a marimo or Jupyter notebook:

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import dlt

data = dlt.pipeline("sap_business_one_pipeline").dataset()
data.orders.df().head()

See how to explore your data in marimo Notebooks and how to query your data in Python with dataset.

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What destinations can I load SAP Business One data to?

dlt supports loading into any of these destinations — only the destination parameter changes:

Change the destination in dlt.pipeline(destination="snowflake") and add credentials in .dlt/secrets.toml. See the full destinations list.

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Next steps

Continue your data engineering journey with the other toolkits of the dltHub AI harness:

• data-exploration — Build custom notebooks, charts, and dashboards for deeper analysis with marimo notebooks.
• dlthub-platform — Deploy, schedule, and monitor your pipeline in production.

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uv run dlthub ai toolkit install data-exploration
uv run dlthub ai toolkit install dlthub-platform

• How to deploy a pipeline
• How to explore your data in marimo Notebooks
• How to query your data in Python with dataset
• Join the dlt community on Slack