How To Fix CNV_DMC_MC_EXCEPTION075 - Structure &1 is a lookup table; cannot add structure at lower level

CNV_DMC_MC_EXCEPTION075 - Overview

• Message type: E = Error

• Message class: CNV_DMC_MC_EXCEPTION - Exception texts of Migration Object Modeller

• Message number: 075

• Message text: Structure &1 is a lookup table; cannot add structure at lower level

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.

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_MC_EXCEPTION075 - Structure &1 is a lookup table; cannot add structure at lower level ?

  The SAP error message CNV_DMC_MC_EXCEPTION075 indicates that there is an issue related to the structure of a lookup table in the context of data migration or conversion processes, particularly when using the SAP Data Migration Cockpit (DMC). The error message states that a structure cannot be added at a lower level because it is defined as a lookup table.
  
  Cause:
  
  Lookup Table Definition: The structure you are trying to add is defined as a lookup table. Lookup tables are typically used to map values from one domain to another and are not intended to have subordinate structures or levels.
  Hierarchical Structure Misconfiguration: The error may arise if there is an attempt to create a hierarchical relationship where it is not allowed, such as trying to add a child structure to a lookup table.
  Data Model Constraints: The data model you are working with may have constraints that prevent certain types of structures from being