How To Fix DI801 - Join condition for secondary table & with adjusted foreign key

SAP Error Message - Details

• Message type: E = Error

• Message class: DI - Dictionary messages: Indexes

• Message number: 801

• Message text: Join condition for secondary table & with adjusted foreign key

What causes this issue?

Each secondary table of a lock object must be connected to a base table
above it in the hierarchy with a join condition. This join condition
must be implemented via a foreign key. This foreign key must have the
secondary table as foreign key table and the base table higher in the
hierarchy as check table. Normally the secondary table should be a
key enhancement of its check table.
In this case one of the foreign key fields of the join condition is not
in the foreign key table. This purely hierarchical relationship thus
no longer exists.

System Response

The action is continued with a warning.

How to fix this error?

If no other error is reported, the lock object is consistent. You
should however check whether the deviation from the hierarchical
structure is desired.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DI801 - Join condition for secondary table & with adjusted foreign key ?

  The SAP error message DI801, which states "Join condition for secondary table & with adjusted foreign key," typically occurs in the context of data extraction or reporting when there is an issue with the join conditions defined in a data model or query. This error indicates that there is a problem with how the secondary table is being joined to the primary table, particularly concerning the foreign key relationships.
  Causes:
  
  Incorrect Join Conditions: The join conditions between the primary and secondary tables may not be correctly defined, leading to mismatches in the foreign key relationships.
  Missing Foreign Key: The foreign key that is supposed to link the two tables may be missing or incorrectly defined in the data model.
  Data Model Changes: If there have been recent changes to the data model, such as adding or removing fields, it may have affected the join conditions.
  Data Integrity Issues: There may be data integrity issues where the foreign key values in the secondary table do not match any primary key values in the primary table.
  
  Solutions:
  
  Review Join Conditions: Check the join conditions defined in the query or data model. Ensure that they are correctly set up to reflect the relationships between the tables.
  Verify Foreign Keys: Ensure that the foreign keys are correctly defined in both the primary and secondary tables. If necessary, adjust the foreign key settings to ensure they match.
  Check Data Model: If there have been recent changes to the data model, review those changes to ensure they have not inadvertently affected the join conditions.
  Data Validation: Perform data validation to ensure that the foreign key values in the secondary table correspond to valid primary key values in the primary table.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the error message and how to resolve it in the context of your specific SAP environment.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) to review table definitions and relationships, or SE80 (Object Navigator) to check the data model.
  Debugging: If you have access to debugging tools, you can trace the execution of the query to identify where the join condition is failing.
  Community Forums: Consider reaching out to SAP community forums or support channels for additional insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify the root cause of the DI801 error and implement a solution to resolve it.