How To Fix /ACCGO/MCK_MAINT103 - Active BOM already exists for this period

SAP Error Message - Details

• Message type: E = Error

• Message class: /ACCGO/MCK_MAINT -

• Message number: 103

• Message text: Active BOM already exists for this period

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /ACCGO/MCK_MAINT103 - Active BOM already exists for this period ?

  The SAP error message /ACCGO/MCK_MAINT103 Active BOM already exists for this period typically occurs in the context of managing Bill of Materials (BOM) in the SAP system, particularly when dealing with the Material Costing (MCK) functionality. This error indicates that there is already an active BOM for the specified period, which prevents the creation or modification of another BOM for the same time frame.
  Cause:
  
  Existing Active BOM: The primary cause of this error is that there is already an active BOM defined for the same material and plant for the specified period. SAP does not allow overlapping active BOMs for the same time frame to maintain data integrity.
  Incorrect Date Range: The date range specified for the new BOM might overlap with the existing BOM's validity period.
  Configuration Issues: There may be configuration settings in the system that enforce strict rules regarding BOM validity periods.
  
  Solution:
  
  
  Check Existing BOMs: 
  
  Use transaction code CS03 (Display BOM) to check if there is an existing BOM for the material and plant in question. Look for the validity dates to see if they overlap with the period you are trying to set for the new BOM.
  
  
  
  Adjust Validity Period:
  
  If you find an existing BOM that overlaps, you can either:
  
  Change the validity period of the existing BOM (if it is no longer needed for that period).
  Create a new BOM with a different validity period that does not overlap with the existing one.
  
  
  
  
  
  Deactivate Existing BOM:
  
  If the existing BOM is no longer required, you can deactivate it. This can be done using transaction code CS02 (Change BOM) and setting the end date to the day before the new BOM's start date.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or help files related to BOM management and Material Costing for additional insights and best practices.
  
  
  
  Check Configuration:
  
  If you have access, check the configuration settings related to BOM management in the SAP system to ensure that they align with your business processes.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  CS01: Create BOM
  CS02: Change BOM
  CS03: Display BOM
  CS11: Display BOM components
  
  
  BOM Validity: Understand how BOM validity works in SAP, including start and end dates, and how they affect material costing and production planning.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues or provide patches related to BOM management.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in Material Management (MM) or Production Planning (PP) for further assistance.