How To Fix M2379 - Different period units in actual and planning versions - copy impossible

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 379

• Message text: Different period units in actual and planning versions - copy impossible

What causes this issue?

You want to copy data from one version to another, where one version is
an actual version and the other a planning version. However, the period
units for the updating of the actual data for one or more information
structure(s) are not the same as those of planning.

System Response

In this case, copying is not possible.

How to fix this error?

Ensure that the period units for the updating of actual data (Table
TMC4) and for planning Table T445A) are the same.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message M2379 - Different period units in actual and planning versions - copy impossible ?

  The SAP error message M2379, "Different period units in actual and planning versions - copy impossible," typically occurs when there is a mismatch between the period units used in the actual and planning versions of a material or production planning scenario. This can happen in various contexts, such as when trying to copy data from one version to another in the Material Management (MM) or Production Planning (PP) modules.
  Cause:
  The error arises due to the following reasons:
  
  Different Period Units: The actual version (e.g., monthly, weekly, daily) and the planning version are set up with different period units. For example, if the actual version is set to monthly and the planning version is set to weekly, the system cannot perform the copy operation.
  Configuration Issues: There may be configuration settings in the system that define how periods are handled, leading to inconsistencies.
  Data Integrity: The data being copied may not align in terms of time frames, leading to this error.
  
  Solution:
  To resolve the M2379 error, you can take the following steps:
  
  
  Check Period Units:
  
  Go to the configuration settings for both the actual and planning versions.
  Ensure that both versions are using the same period unit (e.g., both should be set to monthly or both to weekly).
  
  
  
  Adjust Planning Version:
  
  If necessary, adjust the planning version to match the period unit of the actual version or vice versa. This may involve changing the settings in the configuration or the planning version setup.
  
  
  
  Review Data:
  
  Check the data you are trying to copy. Ensure that it is consistent and aligns with the period units defined in both versions.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific instructions on how to configure period units in your version of SAP.
  
  
  
  Testing:
  
  After making changes, perform a test copy operation to ensure that the error has been resolved.
  
  
  
  Seek Help from SAP Support:
  
  If the issue persists, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like MD61 (Create Planning) or MD62 (Change Planning) to check or modify planning versions.
  Configuration Path: The configuration for period units can typically be found under the following path in the SAP IMG: 
  
  Logistics -> Production -> Material Requirements Planning -> Master Data -> Planning File -> Define Planning File Entries.
  
  
  Documentation: Always refer to the latest SAP Help Portal for detailed information on error messages and their resolutions.
  
  By following these steps, you should be able to resolve the M2379 error and successfully copy data between the actual and planning versions.