Burns & McDonnell Interview Questions and Answers

Implemented an end to end interface scenario for order to cash process

• Created a sales order in SAP ECC system

• Sent the sales order to SAP PI system using IDoc

• Transformed the IDoc to XML format using SAP PI mapping

• Sent the XML message to third-party system using SOAP adapter

• Received the response message from third-party system

• Transformed the response message to IDoc format using SAP PI mapping

• Sent the IDoc back to SAP ECC system

• Verified the sales order status in SAP ECC system

Default port numbers for FTP, SFTP, and HTTP

• FTP default port number is 21

• SFTP default port number is 22

• HTTP default port number is 80

SAP PI 7.1 is an older version while PO 7.5 is the latest version with improved features.

• PO 7.5 has a new single stack architecture while PI 7.1 has a dual stack architecture

• PO 7.5 has better support for cloud integration and API management

• PO 7.5 has improved monitoring and error handling capabilities

• PO 7.5 has a new web-based design tool called SAP Web IDE for integration development

• PO 7.5 has improved security features such as SSL/TLS encryption and OAuth 2.0 authentication

SOAP is a protocol for exchanging structured information using XML, while REST is an architectural style for building web services.

• SOAP uses XML to encode messages, while REST uses a variety of formats such as JSON, XML, or plain text.

• SOAP requires more bandwidth and processing power than REST due to its use of XML.

• REST is more flexible and scalable than SOAP.

• SOAP is commonly used in enterprise environments, while REST is popular for web-based applications.

• SOAP has built-in e...read more

Message flow in SAP PI/PO involves sender, receiver, integration server, mapping, and adapters.

• Messages are sent from a sender system to a receiver system through the integration server.

• Mapping is used to transform the message format from the sender to the receiver system.

• Adapters are used to connect the sender and receiver systems to the integration server.

• Message monitoring and error handling are important aspects of message flow in SAP PI/PO.

Node functions are used in graphical mapping to manipulate data within a node.

• Node functions can be used to perform operations such as concatenation, substring, and date formatting.

• They can also be used to convert data types and perform mathematical calculations.

• Examples of node functions include CONCAT, SUBSTR, FORMAT_DATE, and ROUND.

• Node functions can be accessed by selecting a node in the mapping editor and clicking on the 'Functions' button.