# SAP Business One Service Layer API

**Canonical:** https://apis.io/apis/sap-business-one/service-layer/  
**Provider:** SAP Business One — https://apis.io/providers/sap-business-one/  
**Base URL:** https://<load-balancer>:50000/b1s/v2  
**Documentation:** https://help.sap.com/doc/056f69366b5345a386bb8149f1700c19/10.0/en-US/Service%20Layer%20API%20Reference.html

SAP Business One Service Layer API is one of 11 APIs that [SAP Business One](https://apis.io/providers/sap-business-one/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include ERP, OData, REST, Service Layer, and Business Objects. The published artifact set on APIs.io includes API documentation, a getting-started guide, and an API reference.

RESTful OData v4 API for SAP Business One on HANA exposing nearly all business objects (business partners, items, orders, invoices, journal entries, inventory, production) for POST/GET/PATCH/DELETE operations. Authentication is session-based via POST /Login returning a B1SESSION cookie scoped to a specific company database.

## Machine-readable artifacts (4)

- **Documentation** — https://help.sap.com/doc/056f69366b5345a386bb8149f1700c19/10.0/en-US/Service%20Layer%20API%20Reference.html
- **GettingStarted** — https://learning.sap.com/courses/leveraging-the-sap-business-one-service-layer/introducing-service-layer-api-terms-and-documentation
- **Reference** — https://sap.highwaytwo.com/
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/sap-business-one/refs/heads/main/apis.yml

## Other SAP Business One APIs (10)

- [SAP Business One DI API](https://apis.io/apis/sap-business-one/di-api/)
- [SAP Business One BusinessPartners API](https://apis.io/apis/sap-business-one/sap-business-one-businesspartners-api/)
- [SAP Business One BusinessPartners('{CardCode}') API](https://apis.io/apis/sap-business-one/sap-business-one-businesspartners-cardcode-api/)
- [SAP Business One CompanyService GetCompanyInfo API](https://apis.io/apis/sap-business-one/sap-business-one-companyservice-getcompanyinfo-api/)
- [SAP Business One Invoices API](https://apis.io/apis/sap-business-one/sap-business-one-invoices-api/)
- [SAP Business One Items API](https://apis.io/apis/sap-business-one/sap-business-one-items-api/)
- [SAP Business One Login API](https://apis.io/apis/sap-business-one/sap-business-one-login-api/)
- [SAP Business One Logout API](https://apis.io/apis/sap-business-one/sap-business-one-logout-api/)
- [SAP Business One Orders API](https://apis.io/apis/sap-business-one/sap-business-one-orders-api/)
- [SAP Business One Orders({DocEntry}) API](https://apis.io/apis/sap-business-one/sap-business-one-orders-docentry-api/)

## Tags

ERP, OData, REST, Service Layer, Business Objects

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/sap-business-one/service-layer/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/sap-business-one/.