How To Fix NGC_CORE_CLS002 - Relation (node=&1, ancestor=&2, valid-from=&3) does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: NGC_CORE_CLS - Message class for class maintenance

• Message number: 002

• Message text: Relation (node=&1, ancestor=&2, valid-from=&3) does not exist

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message NGC_CORE_CLS002 - Relation (node=&1, ancestor=&2, valid-from=&3) does not exist ?

  The SAP error message NGC_CORE_CLS002 typically indicates that there is an issue with a relation in the system, specifically that a certain relationship between nodes (or objects) does not exist in the database. This error can occur in various contexts, such as when working with hierarchical data structures, master data, or when trying to access or manipulate relationships in the SAP system.
  Cause:
  The error message can be caused by several factors, including:
  
  Missing Data: The specified relation (node, ancestor, valid-from) does not exist in the database. This could be due to data not being created or deleted inadvertently.
  Incorrect Input: The parameters provided (node, ancestor, valid-from) may be incorrect or not matching any existing records in the database.
  Data Consistency Issues: There may be inconsistencies in the data, such as orphaned records or broken links in the hierarchy.
  Configuration Issues: There might be configuration problems in the system that prevent the proper establishment of relationships.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Verify Data: Check the database or relevant tables to ensure that the specified node and ancestor exist. You can use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to look up the relevant tables.
  
  
  Check Input Parameters: Ensure that the parameters you are using (node, ancestor, valid-from) are correct and correspond to existing records.
  
  
  Data Maintenance: If the relationship is indeed missing, you may need to create the necessary records or relationships. This could involve using transaction codes related to the specific module you are working with (e.g., MM, SD, etc.).
  
  
  Consistency Check: Run consistency checks or data validation reports to identify and fix any inconsistencies in the data.
  
  
  Consult Documentation: Review SAP documentation or notes related to the specific module or functionality you are working with to see if there are any known issues or additional steps required.
  
  
  Contact Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance. Provide them with the error message details and any relevant context.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that can help you investigate the issue, such as SE11, SE16, or specific transaction codes related to the module you are working with.
  SAP Notes: Check the SAP Support Portal for any notes related to the error message or the specific functionality you are using.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to diagnose and resolve the NGC_CORE_CLS002 error in your SAP system.