How To Fix MC283 - Table & does not have a foreign key for the primary table

SAP Error Message - Details

• Message type: E = Error

• Message class: MC - Aggregate: views, matchcodes, lock objects

• Message number: 283

• Message text: Table & does not have a foreign key for the primary table

What causes this issue?

No foreign key relationship was maintained between the primary table
and one of the secondary tables of the aggregate.
The secondary tables of an aggregate must be connected with the primary
table of this aggregate by foreign key relationships. This connection
can also be transitive.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Go to the single field maintenance screen of the corresponding
secondary table. Position the cursor to the field for which the foreign
key is to be maintained and go to the foreign key maintenance screen by
selecting the function <LS>Foreign key</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MC283 - Table & does not have a foreign key for the primary table ?

  The SAP error message MC283 indicates that there is a problem with the foreign key relationship between two tables in the context of the Material Management (MM) module, specifically related to the data in the Info Structure (often used in reporting and analysis).
  Cause:
  The error occurs when the system expects a foreign key relationship between two tables, but it cannot find one. This typically happens in the following scenarios:
  
  Missing Foreign Key Definition: The foreign key relationship has not been defined in the database for the specified tables.
  Incorrect Table Configuration: The configuration of the Info Structure or the underlying tables may be incorrect or incomplete.
  Data Integrity Issues: There may be data integrity issues where the data in the primary table does not match the expected data in the foreign table.
  
  Solution:
  To resolve the MC283 error, you can take the following steps:
  
  
  Check Table Definitions:
  
  Use transaction codes like SE11 (Data Dictionary) to check the definitions of the tables involved. Ensure that the foreign key relationships are correctly defined.
  
  
  
  Define Foreign Key Relationships:
  
  If the foreign key relationship is missing, you may need to define it. This can be done in the Data Dictionary (SE11) by creating a foreign key relationship between the primary and foreign tables.
  
  
  
  Review Info Structure Configuration:
  
  Check the configuration of the Info Structure using transaction code MC21. Ensure that the structure is correctly set up and that all necessary fields are included.
  
  
  
  Data Consistency Check:
  
  Run consistency checks on the data in both tables to ensure that there are no orphaned records or mismatches. You can use transaction codes like MC22 to check the Info Structure data.
  
  
  
  Rebuild the Info Structure:
  
  If the issue persists, consider rebuilding the Info Structure. This can be done by deleting and recreating the Info Structure or by using the relevant transaction codes to refresh the data.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific Info Structure and tables involved for any additional guidance or known issues.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance, especially if this is a production environment.
  
  
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), MC21 (Info Structure), MC22 (Display Info Structure), SE14 (Database Utility).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Data Dictionary: Understanding the relationships and structures in the Data Dictionary can help in diagnosing and fixing the issue.
  
  By following these steps, you should be able to identify and resolve the cause of the MC283 error in SAP.