How To Fix CM_SUB_MLI049 - Specification &1 cannot inherit data; it is receiving data by reference

CM_SUB_MLI049 - Overview

• Message type: E = Error

• Message class: CM_SUB_MLI - Messages for Multilevel Inheritance

• Message number: 049

• Message text: Specification &1 cannot inherit data; it is receiving data by reference

What causes this issue?

A reference specification was already assigned to the specification &V1&
. A specification cannot simultaneously receive data by referencing
<ZH>and</> by inheritance. The specification &V1& can, however, still
pass on data. This means you cannot enter data in the <LS>Relationships
</> tab page in the <LS>...inherits from</> screen area, but only in
the <LS>...passes on to</> screen area.

Error message extract from SAP system. Copyright SAP SE.

CM_SUB_MLI049 - Details

• The SAP error message CM_SUB_MLI049 indicates that a specification (usually a material specification or a similar object) is attempting to inherit data from another specification, but it is unable to do so because it is receiving data by reference. This typically occurs in the context of SAP's classification and specification management, particularly in the Chemical Management module or similar areas where specifications are defined and managed.
  
  Cause:
  
  Data Inheritance Issue: The specification you are trying to create or modify is set up to inherit data from another specification, but the source specification is configured to provide data by reference rather than by value. This means that the data is not directly available for inheritance.
  Configuration Settings: The settings in the specification management may not allow for inheritance in the way you are attempting. This could be due to the way the specifications are defined or the relationships between them.
  Data Structure: The structure of