How To Fix DMC_EXCEPTION002 - Lookup tables cannot be part of any foreign key relationship

DMC_EXCEPTION002 - Overview

• Message type: E = Error

• Message class: DMC_EXCEPTION - Message class for exception texts

• Message number: 002

• Message text: Lookup tables cannot be part of any foreign key relationship

A lookup table contains records that are looked up from a field in
another table to fill in the value of that field. The table can be
referenced by rules and used by mapping operations, but does not
directly provide content for fields in the target system.

Error message extract from SAP system. Copyright SAP SE.

DMC_EXCEPTION002 - Details

• The SAP error message DMC_EXCEPTION002 indicates that lookup tables cannot be part of any foreign key relationship in the context of SAP Data Management or SAP HANA. This error typically arises when you attempt to create a foreign key relationship involving a lookup table, which is not allowed due to the nature of lookup tables.
  
  Cause:
  
  Lookup Tables: Lookup tables are designed to provide reference data and are not intended to enforce referential integrity through foreign key constraints. They usually contain static data that is used for validation or categorization.
  Foreign Key Constraints: Foreign key relationships are meant to enforce data integrity between two tables, ensuring that a value in one table corresponds to a valid entry in another. Since lookup tables are not meant to be part of such relationships, attempting to create one results in this error.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Table Design: Ensure that the