How To Fix PPEENG144 - &1 between &2 and &3 cannot be deleted because of cardinality to &2

SAP Error Message - Details

• Message type: E = Error

• Message class: PPEENG - iPPE Engine Messages

• Message number: 144

• Message text: &1 between &2 and &3 cannot be deleted because of cardinality to &2

What causes this issue?

You have tried to delete a relationship of type &v1& between the
objects &v2& and &v3&. The Customizing for relationship type &v1&
prescribes a minimum number of relationships of type &v1& at object
&v2&. If you delete the relationship, the minimum requirement would not
be met.

System Response

The system does not allow you to delete the relationship of type &v1&
between &v2& and &v3&.

How to fix this error?

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

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 PPEENG144 - &1 between &2 and &3 cannot be deleted because of cardinality to &2 ?

  The SAP error message PPEENG144 indicates that there is an issue with deleting a specific object or record due to cardinality constraints in the system. This typically occurs in the context of SAP's Production Planning and Detailed Scheduling (PP/DS) or similar modules where relationships between objects (like orders, resources, or materials) are defined.
  Cause:
  The error message PPEENG144 occurs when you attempt to delete an object (e.g., a production order, a resource, or a planning object) that is still linked to other objects in a way that violates the cardinality rules. Cardinality refers to the relationship between two entities, such as one-to-one, one-to-many, or many-to-many. In this case, the object you are trying to delete is still referenced by another object, which prevents its deletion.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Dependencies: Check the dependencies of the object you are trying to delete. You can do this by reviewing the relationships in the relevant transaction or using specific reports that show linked objects.
  
  
  Remove Links: If the object is linked to other objects, you will need to remove those links first. This may involve:
  
  Deleting or modifying dependent objects.
  Changing the status of the object to allow for deletion (if applicable).
  
  
  
  Check for Active Processes: Ensure that there are no active processes or transactions that are using the object. For example, if it is a production order, make sure it is not currently being processed.
  
  
  Use Transaction Codes: Utilize relevant transaction codes to check for dependencies. For example:
  
  CO02 for production orders.
  MD04 for stock/requirements list.
  C223 for checking the relationships in the capacity planning.
  
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific details on cardinality rules related to the objects you are working with.
  
  
  Seek Help from SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support or your internal SAP team for assistance.
  
  
  Related Information:
  
  Cardinality in SAP: Understanding how cardinality works in SAP can help prevent similar issues in the future. Familiarize yourself with the data model and relationships in the specific module you are working with.
  Transaction Codes: Familiarize yourself with transaction codes that can help you analyze and manage object relationships.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.