How To Fix PPEACT628 - Under &1 &2 only 'end-start' relationships are allowed between &3 and &4

SAP Error Message - Details

• Message type: E = Error

• Message class: PPEACT - Messages for iPPE ACT Application (Activities)

• Message number: 628

• Message text: Under &1 &2 only 'end-start' relationships are allowed between &3 and &4

What causes this issue?

Only relationships with the type "End-Start" are allowed
between activities below operations.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Specify the relationship type "End-Start" for the relationship between
the activities &V3& and &V4&.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PPEACT628 - Under &1 &2 only 'end-start' relationships are allowed between &3 and &4 ?

  The SAP error message PPEACT628 typically occurs in the context of production planning and scheduling, particularly when dealing with relationships between activities in a project or production order. The message indicates that there is an issue with the type of relationship defined between two activities or elements in the system.
  Cause:
  The error message "Under &1 &2 only 'end-start' relationships are allowed between &3 and &4" suggests that the system is enforcing a specific type of relationship between two activities (or elements) that is not being adhered to. Specifically, it indicates that only "end-start" relationships are permitted under the specified conditions (represented by &1 and &2), but a different type of relationship (such as "start-start," "end-end," or "start-end") has been defined.
  Solution:
  To resolve this error, you should:
  
  
  Review the Relationships: Check the relationships defined between the activities or elements indicated by &3 and &4. Ensure that they are set to "end-start" as required by the system.
  
  
  Modify the Relationship Type: If the relationship is not set to "end-start," you will need to change it. This can typically be done in the project or production order management screen where the activities are defined.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on how to change activity relationships in your version of SAP.
  
  
  Check Configuration Settings: If you are unsure why the system is enforcing this rule, it may be beneficial to check the configuration settings in the SAP system related to project management or production planning. There may be specific settings that dictate the allowed relationship types.
  
  
  Test Changes: After making the necessary adjustments, test the changes to ensure that the error message no longer appears and that the activities are scheduled correctly.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional context or solutions for this error message.
  Transaction Codes: Familiarize yourself with transaction codes related to project management (like CJ20N for project planning) or production orders (like CO02 for order processing) where you can manage activity relationships.
  User Roles and Permissions: Ensure that you have the necessary permissions to make changes to activity relationships in the system.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in production planning or project management within SAP.