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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CM_SUB_MLI049 - Specification &1 cannot inherit data; it is receiving data by reference ?

  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 the specifications may not support the inheritance model you are trying to implement.
  
  Solution:
  
  Check Specification Settings: Review the settings of both the source and target specifications. Ensure that the source specification is set up to allow data inheritance. If it is set to provide data by reference, you may need to change this setting or create a new specification that provides data by value.
  Modify Inheritance Configuration: If possible, adjust the configuration of the specifications to allow for the desired inheritance. This may involve changing the way data is structured or how specifications are linked.
  Create a New Specification: If the current specifications cannot be modified to allow for inheritance, consider creating a new specification that directly contains the necessary data instead of relying on inheritance.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on managing specifications and inheritance in your version of SAP.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  Training and Documentation: If you are frequently working with specifications in SAP, consider additional training or reviewing documentation on specification management and data inheritance.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or a technical consultant who specializes in SAP configuration and specification management.