How To Fix /SAPAPO/CTM1344 - Plan &1: Activity &2 has more than one successor

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/CTM1 -

• Message number: 344

• Message text: Plan &1: Activity &2 has more than one successor

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/CTM1344 - Plan &1: Activity &2 has more than one successor ?

  The SAP error message /SAPAPO/CTM1344 indicates that there is an issue with the activity scheduling in the SAP Advanced Planning and Optimization (APO) module, specifically within the Capacity Planning or CTM (Capable-to-Match) functionality. The error message states that a specific activity has more than one successor, which is not allowed in the context of the planning process.
  Cause:
  The error occurs when:
  
  An activity in the planning process is defined to have multiple successor activities, which violates the rules of the scheduling logic in SAP APO.
  The activity relationships are incorrectly defined in the planning model, leading to ambiguity in the scheduling sequence.
  There may be a configuration issue or a data integrity problem in the master data related to the activities.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Activity Relationships:
  
  Go to the activity definition in the planning model and review the successor relationships.
  Ensure that each activity has only one defined successor. If there are multiple successors, you will need to modify the relationships to comply with the single successor requirement.
  
  
  
  Adjust Planning Parameters:
  
  Review the planning parameters and settings in the CTM profile to ensure they are correctly configured.
  Make sure that the settings allow for the correct sequencing of activities.
  
  
  
  Review Master Data:
  
  Check the master data for the activities involved. Ensure that there are no inconsistencies or errors in the definitions of the activities and their relationships.
  
  
  
  Use Transaction Codes:
  
  Use transaction codes like /SAPAPO/CTM to access the CTM planning board and analyze the activities and their relationships.
  You can also use /SAPAPO/CTM1 to check the detailed planning results and identify where the issue lies.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for guidance on activity relationships and planning logic in APO.
  
  
  
  Testing:
  
  After making the necessary adjustments, run the planning process again to see if the error persists.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Training and Documentation: Consider reviewing training materials or documentation related to SAP APO and CTM to better understand activity scheduling and planning logic.
  
  By following these steps, you should be able to identify and resolve the issue causing the /SAPAPO/CTM1344 error message.