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

M2379 - Overview

• 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