How To Fix SDME_OBJ426 - Not-Supported Foreign Key Construction: &1-&2

SAP Error Message - Details

• Message type: E = Error

• Message class: SDME_OBJ - DME: Maintenance Object Messages

• Message number: 426

• Message text: Not-Supported Foreign Key Construction: &1-&2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SDME_OBJ426 - Not-Supported Foreign Key Construction: &1-&2 ?

  The SAP error message SDME_OBJ426 ("Not-Supported Foreign Key Construction: &1-&2") typically occurs in the context of SAP's Sales and Distribution (SD) module when there is an issue with the foreign key relationships in the database tables. This error indicates that the system has encountered a foreign key relationship that is not supported or is incorrectly defined.
  Cause:
  
  Incorrect Foreign Key Definition: The foreign key relationship between two tables may not be properly defined or may not adhere to the constraints expected by the SAP system.
  Data Inconsistency: There may be inconsistencies in the data that violate the foreign key constraints.
  Custom Development: If there are custom developments or modifications in the database schema, they may not align with the standard SAP foreign key relationships.
  Table Structure Changes: Changes in the structure of the tables involved (e.g., adding or removing fields) may lead to unsupported foreign key constructions.
  
  Solution:
  
  Check Foreign Key Definitions: Review the foreign key definitions in the Data Dictionary (transaction SE11) for the tables involved. Ensure that they are correctly defined and that the fields used in the foreign key relationship exist and are compatible.
  Data Consistency Check: Run consistency checks on the data in the involved tables to ensure that there are no orphaned records or data that violates the foreign key constraints.
  Review Custom Code: If there are custom developments, review the code to ensure that it does not interfere with the standard foreign key relationships.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on how to resolve it.
  Database Table Analysis: Use transaction SE14 to analyze the database tables and check for inconsistencies or issues with the foreign key relationships.
  Recreate Foreign Keys: If necessary, you may need to drop and recreate the foreign key relationships to ensure they are correctly defined.
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE14 (Database Utility), SE80 (Object Navigator).
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may provide additional insights or solutions related to this error.
  Documentation: Review SAP documentation related to database design and foreign key constraints for best practices.
  
  If the issue persists after following these steps, it may be beneficial to consult with an SAP Basis or ABAP consultant who can provide deeper insights into the database structure and help resolve the issue.