In the realm of SAP B2B integration, secure and reliable data exchange between trading partners is critical. One of the most widely used protocols for such communications is AS2 (Applicability Statement 2). AS2 enables the secure and reliable transport of electronic data over the Internet using HTTP/S, ensuring message integrity, confidentiality, and non-repudiation.
SAP supports AS2 communication through its AS2 adapter, which is a key component in enabling businesses to connect seamlessly with their external partners. This article guides you through the essential steps and best practices for configuring the AS2 adapter within the SAP integration landscape.
The AS2 adapter is a software component that manages the transmission and reception of AS2 messages. It handles the packaging of business documents (such as EDI or XML files) into secure AS2 messages, encrypts them, digitally signs the content, and verifies incoming messages with signature and encryption validation.
In SAP Process Integration (PI), Process Orchestration (PO), or SAP Cloud Platform Integration (CPI), the AS2 adapter enables integration scenarios compliant with industry standards, ensuring interoperability with various trading partners.
In the SAP Integration Directory:
For both sending and receiving messages, configure AS2 communication channels:
When creating a communication channel:
Inside the communication channel settings, configure the following:
AS2 Identifiers: Enter the AS2-From and AS2-To IDs, which uniquely identify your system and your trading partner.
URL: For sender channels, specify the endpoint URL of the partner’s AS2 server.
Certificates:
MDN Settings: Configure whether to request synchronous or asynchronous MDNs, and specify expected MDN behavior (e.g., signed MDNs).
Retry Settings: Define retry intervals and maximum retry attempts for message delivery failures.
Create message mappings and operation mappings to transform business documents between SAP internal formats (e.g., IDocs) and partner formats (e.g., EDI X12).
Configuring the AS2 adapter in SAP B2B integration environments is a foundational step for secure and efficient partner communications. By following the correct configuration steps—defining communication components, setting up communication channels, managing certificates, and monitoring MDNs—organizations can ensure compliant, reliable, and secure B2B data exchanges.
Proper AS2 adapter configuration not only enhances interoperability with diverse partners but also strengthens trust and security in critical business communications.