How To Fix S~113 - Only one predecessor allowed node & with typ &

SAP Error Message - Details

• Message type: E = Error

• Message class: S~ - Repository API Business Navigator

• Message number: 113

• Message text: Only one predecessor allowed node & with typ &

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message S~113 - Only one predecessor allowed node & with typ & ?

  The SAP error message S~113 ("Only one predecessor allowed node & with type &") typically occurs in the context of SAP's graphical planning tools, such as in the Production Planning (PP) module or in the context of project management within SAP. This error indicates that there is an issue with the structure of a network or a sequence of operations where a node is expected to have only one predecessor, but it currently has more than one.
  Cause:
  
  Network Structure Violation: The error arises when a node in a network (like a task in a project or a step in a production process) is defined to have only one predecessor, but the system detects multiple predecessors linked to that node.
  Incorrect Configuration: The configuration of the network or the task dependencies may not align with the rules set in the system, leading to this error.
  Data Entry Errors: There may be mistakes in how the nodes and their relationships were defined, such as incorrectly linking multiple predecessors to a single node.
  
  Solution:
  
  Review Node Relationships: Check the node in question and its predecessors. Ensure that it only has one predecessor as required by the system. You can do this by navigating to the relevant transaction (like CJ20N for project management or C223 for network planning) and reviewing the relationships.
  Adjust Dependencies: If you find that there are multiple predecessors, you will need to adjust the dependencies. This may involve:
  
  Removing unnecessary predecessor links.
  Redefining the sequence of operations to comply with the one-predecessor rule.
  
  
  Consult Documentation: Refer to SAP documentation or guidelines specific to the module you are working with to understand the rules governing node relationships.
  Testing Changes: After making adjustments, test the changes to ensure that the error no longer occurs and that the network or project functions as intended.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder), C223 (Change Network), or C210 (Display Network) to manage and review your project or network structures.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, specific versions of SAP may have bugs that are documented in SAP Notes.
  User Roles and Permissions: Ensure that you have the necessary permissions to make changes to the network or project structures, as restrictions may prevent you from resolving the issue.
  
  If the problem persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.