Solution:
From learning.sap.com, the Data Dictionary for SAP Ariba Buying and Invoicing contains:
* Import and export tasks (i.e., specifications for SAP Ariba Procurement Imports and Exports, also known as Integration Events). SAP Learning
* Custom fields (the data dictionary is dynamically tailored to the realm and automatically includes custom fields). SAP Learning So the correct answe rs are:
* A. Import and export tasks
* D. Custom fields

Solution:
The correct answe rs are:
* A. Notification SAP Learning
* C. Information SAP Learning