How To Fix M2720 - DDIC structure & not available for unit determination! (TMC6)

SAP Error Message - Details

• Message type: E = Error

• Message class: M2 - LIS: Generating and updating info structures

• Message number: 720

• Message text: DDIC structure & not available for unit determination! (TMC6)

What causes this issue?

The system could not find the reference table &V1& in the Data
Dictionary while it was determining the units for your communication
structure.
This situation can occur if you manually delete communication
structures, but the corresponding LIS inbound interface continues to
exist.

System Response

Generation will continue; the error will have no direct effect on the
generation of your structure.

How to fix this error?

It is imperative that you correct this error.
The information structure / updating cannot otherwise be generated.
The where-used list (under "Utilities") helps you to display the LIS
inbound interface for an incorrect structure.
You can then delete the incorrect LIS inbound interface.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M2720 - DDIC structure & not available for unit determination! (TMC6) ?

  The SAP error message M2720, which states "DDIC structure & not available for unit determination! (TMC6)," typically occurs in the context of material management and inventory management processes. This error indicates that the system is unable to determine the unit of measure for a material because the necessary data dictionary (DDIC) structure is not available or not properly configured.
  Causes:
  
  Missing or Incomplete Data Dictionary Structure: The required data structure for unit determination is not defined in the system.
  Configuration Issues: There may be issues with the configuration of the material master or the unit of measure settings.
  Custom Development: If there are custom developments or enhancements, they may not be correctly implemented, leading to this error.
  Transport Issues: If the system has recently undergone a transport of changes, the necessary structures may not have been transported correctly.
  
  Solutions:
  
  Check Data Dictionary: Verify that the necessary data dictionary structures are available in the system. You can do this by checking the relevant tables and structures in the ABAP Dictionary (transaction SE11).
  Review Material Master Configuration: Ensure that the material master is correctly configured, especially the unit of measure settings. Check the material type and ensure that the unit of measure is defined.
  Check Custom Code: If there are any custom developments, review the code to ensure that it is correctly referencing the necessary structures for unit determination.
  Transport Management: If the issue arose after a transport, check the transport logs to ensure that all necessary objects were transported successfully. You may need to re-transport or adjust the transport.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide solutions or workarounds for known issues.
  System Refresh: In some cases, refreshing the system or performing a system restart may resolve temporary inconsistencies.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), MM03 (Display Material), and OME1 (Maintain Units of Measure).
  SAP Documentation: Refer to SAP Help documentation for detailed information on unit of measure determination and material master data management.
  Community Forums: Engage with SAP community forums or support channels for additional insights and shared experiences from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis or technical team for further investigation and resolution.