SAP ABAP Web Services

Internal Session - call transaction / call screen / call dialog - export /import - ABAP Memory
External Session - new session within SAP - SPA?GPA - SAP Memory


SOAP - Simple Object Access Protocol
XML - eXtensible mark up language
WSDL - Web Service Definition Language
UDDI - Universal Description , Discovery and Integration 


What is Web Service ?

• The web service is a system of communication using SOAP protocol over the web.
• Web service is based on :
• SOAP protocol to exchange data
• WSDL to declare description
• UDDI to reference the service 

WS Provider:

• This is a service provided by the SAP to the outside world.

Security level in the WEB service configuration in SAP ABAP

• This level of security is a incident in SOAMANAGER configuration. the level determine the minimum authentication required for a web service.
• High - HTTPS with heavy authentication 
• Medium - Basic authentication (user/pwd) with SSL (SSL is a technique for encryption)
• Low - Basic authentication (user/pwd) without SSL
• No - No Authentication is required

Customize the Web Service

• Go to SOAMANAGER and create binding for the web service.
• generate WSDL for the binding.
• then we can use binding URL for the use of this web service.
• Other service can use this WSDL to access this provider web service.

WS Consumer:

• Create Consumer from SE80.
• Create Port using SOAMANAGER
• Execute consumer from SE80