How To Fix E2308 - Select exactly one basis table

SAP Error Message - Details

• Message type: E = Error

• Message class: E2 - DE Data Dictionary

• Message number: 308

• Message text: Select exactly one basis table

What causes this issue?

You have chosen the function 'Relationships to Base Tables' and have
selected either no base tables or several base tables.

System Response

The system expects at least one base table to be marked.

How to fix this error?

Please select exactly one base table whose relationships should be
displayed.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E2308 - Select exactly one basis table ?

  The SAP error message E2308, which states "Select exactly one basis table," typically occurs in the context of data modeling or when working with database views in SAP. This error indicates that the system expects you to select a single basis table for a particular operation, but either none or multiple tables have been selected.
  Cause:
  
  Multiple Table Selection: The most common cause of this error is that the user has selected more than one table when the system requires only one.
  No Table Selected: Alternatively, if no table is selected at all, this error can also be triggered.
  Incorrect Configuration: Sometimes, the configuration of the data model or the query may not be set up correctly, leading to ambiguity in table selection.
  
  Solution:
  
  Select a Single Table: Ensure that you are selecting exactly one basis table. Review your selection criteria and make sure only one table is highlighted or selected.
  Check Query/Model Configuration: If you are working with a query or a data model, check the configuration to ensure that it is set up to reference a single basis table.
  Review Joins: If you are trying to create a join or a view, ensure that the join conditions are correctly defined and that they do not inadvertently lead to multiple table selections.
  Use the Correct Transaction: Make sure you are using the correct transaction code or tool that is appropriate for the operation you are trying to perform.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you might be using transaction codes like SE11 (Data Dictionary), SE80 (Object Navigator), or others related to data modeling.
  Documentation: Refer to SAP Help documentation for more details on the specific context in which you are encountering this error.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Community Forums: SAP Community forums can be a good resource for finding similar issues faced by other users and their solutions.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.