How To Fix DI773 - Basis table & occurs more than once

SAP Error Message - Details

• Message type: E = Error

• Message class: DI - Dictionary messages: Indexes

• Message number: 773

• Message text: Basis table & occurs more than once

What causes this issue?

A table appears several times in the list of base tables of the lock
object. This is not allowed.

System Response

The action was cancelled.

How to fix this error?

Ensure in the maintenance transaction of the ABAP/4 Dictionary that
no table appears more than once as base table of the lock object.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DI773 - Basis table & occurs more than once ?

  The SAP error message DI773 indicates that a basis table is being referenced more than once in a data dictionary object, which can lead to inconsistencies or conflicts in the data model. This error typically arises during the activation of a data dictionary object, such as a table, view, or structure.
  Cause:
  
  Duplicate References: The most common cause of this error is that the same basis table is being referenced multiple times in the definition of a data dictionary object.
  Incorrect Table Relationships: If a table is incorrectly defined to have multiple relationships to the same basis table, it can trigger this error.
  Inconsistent Data Model: Changes in the data model that have not been properly reflected in all related objects can also lead to this error.
  
  Solution:
  
  Check Data Dictionary Object: Review the data dictionary object (table, view, or structure) that is causing the error. Look for any duplicate references to the same basis table.
  Remove Duplicates: If you find that the same basis table is referenced multiple times, remove the duplicate references. Ensure that each basis table is only referenced once in the object definition.
  Adjust Relationships: If the object is meant to have multiple relationships to the same basis table, consider redesigning the data model to avoid this situation. You may need to create additional views or structures to handle the relationships appropriately.
  Re-activate the Object: After making the necessary changes, try to activate the data dictionary object again. This should resolve the error if the duplicates have been removed.
  Check for Dependencies: Ensure that there are no other objects that depend on the object you are trying to activate. If there are, you may need to adjust those as well.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like SE11 (Data Dictionary) to view and edit the data dictionary objects.
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message, as there may be known issues or fixes provided by SAP.
  Documentation: Refer to SAP documentation for best practices in data modeling and dictionary object design to avoid such issues in the future.
  
  If the problem persists after following these steps, it may be beneficial to consult with an SAP Basis or ABAP consultant who can provide more in-depth analysis and support.