How To Fix /MVA/AMC_BM_MSG879 - B/M &1: Shift of start to &2 is outside the permitted period

SAP Error Message - Details

• Message type: E = Error

• Message class: /MVA/AMC_BM_MSG -

• Message number: 879

• Message text: B/M &1: Shift of start to &2 is outside the permitted period

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /MVA/AMC_BM_MSG879 - B/M &1: Shift of start to &2 is outside the permitted period ?

  The SAP error message /MVA/AMC_BM_MSG879 B/M &1: Shift of start to &2 is outside the permitted period typically occurs in the context of the Advanced Planning and Optimization (APO) module, particularly when dealing with planning and scheduling activities. This error indicates that there is an attempt to shift a planning period or a start date to a time that is not allowed based on the configuration or settings in the system.
  Cause:
  
  Date Constraints: The start date you are trying to shift to (&2) is outside the allowed planning horizon or period defined in the system.
  Configuration Settings: The planning parameters or settings may not allow for shifts beyond a certain limit, which could be defined in the planning book or in the master data.
  Locked Periods: The period you are trying to shift to may be locked for planning or may not be open for changes.
  Data Integrity Issues: There may be inconsistencies in the data that prevent the shift from being processed correctly.
  
  Solution:
  
  Check Planning Horizon: Review the planning horizon settings in your APO system. Ensure that the date you are trying to shift to is within the defined planning horizon.
  Adjust Configuration: If necessary, adjust the configuration settings to allow for the desired shifts. This may involve changing the planning book settings or the master data.
  Unlock Periods: If the period is locked, you may need to unlock it or change the settings to allow for modifications.
  Review Data: Check for any data integrity issues that may be causing the error. Ensure that all relevant master data and transaction data are consistent and correctly configured.
  Consult Documentation: Refer to SAP documentation or help resources for specific details on the error message and potential fixes.
  Contact 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 want to check relevant transaction codes in SAP APO, such as /SAPAPO/SDP94 for planning book views or /SAPAPO/MC90 for master data maintenance.
  SAP Notes: Look for SAP Notes related to this error message for any patches or updates that may address the issue.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed and resolved.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.