How To Fix /PM0/ABR_PM_PLAUSIS551 - Relationship &1 as &2 with origin &3 violates the max. cardinality

SAP Error Message - Details

• Message type: E = Error

• Message class: /PM0/ABR_PM_PLAUSIS -

• Message number: 551

• Message text: Relationship &1 as &2 with origin &3 violates the max. cardinality

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PM0/ABR_PM_PLAUSIS551 - Relationship &1 as &2 with origin &3 violates the max. cardinality ?

  The SAP error message /PM0/ABR_PM_PLAUSIS551 indicates that there is a violation of the maximum cardinality constraint in a relationship within the SAP system. This typically occurs in the context of project management or maintenance planning, where relationships between objects (like tasks, activities, or resources) are defined with specific cardinality rules.
  Cause:
  The error message suggests that a relationship between two entities (denoted as &1 and &2) is attempting to exceed the maximum allowed instances defined for that relationship. The origin &3 indicates the source or context of the relationship that is being violated.
  For example, if you have a project that allows a maximum of 3 resources to be assigned to a task, and you try to assign 4 resources, this error will be triggered.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review the Relationship Definition: Check the configuration of the relationship in the system to understand the maximum cardinality defined. This can usually be found in the customizing settings for the relevant module (like PM or PS).
  
  
  Adjust the Data: 
  
  If you are trying to create or modify a relationship, ensure that you are not exceeding the maximum cardinality. For instance, if the maximum is set to 3, ensure that you only have 3 or fewer instances.
  If necessary, remove or reassign some of the existing relationships to comply with the cardinality rules.
  
  
  
  Consult Documentation: Refer to the SAP documentation or help files related to the specific module you are working with. This can provide insights into the expected configurations and limitations.
  
  
  Check for Customizations: If your organization has custom developments or enhancements, ensure that these do not conflict with standard cardinality rules.
  
  
  Testing: After making adjustments, test the changes in a development or quality assurance environment before applying them to production.
  
  
  Related Information:
  
  Cardinality in SAP: Cardinality defines the number of instances of one entity that can be associated with instances of another entity. Understanding these rules is crucial for proper data modeling in SAP.
  Transaction Codes: You may need to use specific transaction codes (like SE11 for data dictionary or SPRO for customizing) to review and modify the relationship definitions.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message, as there may be updates or fixes provided by SAP.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.