How To Fix T7013 - Activity category &1 not permitted as successor for activity &2

SAP Error Message - Details

• Message type: E = Error

• Message class: T7 - Forex entry

• Message number: 013

• Message text: Activity category &1 not permitted as successor for activity &2

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 T7013 - Activity category &1 not permitted as successor for activity &2 ?

  The SAP error message T7013 indicates that there is an issue with the activity relationships in a project or network. Specifically, it states that the activity category specified (represented by &1) is not permitted as a successor for the activity (represented by &2). This typically occurs in project management or production planning scenarios where activities are linked in a sequence.
  Cause:
  
  Invalid Activity Category: The activity category of the successor activity does not allow it to follow the predecessor activity based on the configuration in the system.
  Configuration Settings: The system may have specific rules or settings that restrict certain types of activities from being linked together.
  Project Structure: The project or network structure may not support the relationship due to the nature of the activities involved.
  
  Solution:
  
  Check Activity Categories: Review the activity categories of both the predecessor and successor activities. Ensure that the successor activity's category is valid for following the predecessor activity.
  Adjust Activity Relationships: If the relationship is not valid, consider changing the successor activity to one that is permitted or modifying the predecessor activity if applicable.
  Review Configuration: Check the configuration settings in the project management module to see if there are any restrictions on activity relationships. This may involve consulting with a system administrator or SAP consultant.
  Use Valid Activity Types: Ensure that the activities being linked are of types that are allowed to be successors in the context of your project or network.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on activity categories and their relationships.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like CJ20N (Project Builder) or CN21 (Create Network) to view and modify project activities.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  User Roles: Ensure that you have the necessary permissions to modify project activities and their relationships.
  
  If the issue persists after checking these aspects, it may be beneficial to reach out to your SAP support team for further assistance.