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

/SAPAPO/CTM1344 - Overview

• 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

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.

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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