How To Fix /SAPAPO/OM_ERROR2099 - An activity has at least two predecessors

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_ERROR2 -

• Message number: 099

• Message text: An activity has at least two predecessors

Self-Explanatory Message

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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/OM_ERROR2099 - An activity has at least two predecessors ?

  The SAP error message /SAPAPO/OM_ERROR2099 indicates that an activity in the SAP Advanced Planning and Optimization (APO) system has been assigned multiple predecessor activities, which is not allowed. In project management and scheduling, an activity can only have one predecessor to maintain a clear and linear sequence of tasks.
  
  Cause:
  The error typically arises due to one of the following reasons:
  
  Incorrect Activity Configuration: The activity has been incorrectly configured to have multiple predecessors in the planning or scheduling setup.
  Data Entry Error: During the creation or modification of the activity, multiple predecessor relationships may have been inadvertently assigned.
  System or Process Misconfiguration: There may be a misconfiguration in the project or planning process that allows for multiple predecessors to be assigned.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Activity Configuration:
  
  Go to the activity in question and check its predecessor settings.
  Ensure that only one predecessor is assigned to the activity.
  
  
  
  Modify Predecessor Relationships:
  
  If multiple