How To Fix /SAPAPO/OM_TS079 - Propagation cycle when creating/deleting relations

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_TS -

• Message number: 079

• Message text: Propagation cycle when creating/deleting relations

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 /SAPAPO/OM_TS079 - Propagation cycle when creating/deleting relations ?

  The SAP error message /SAPAPO/OM_TS079 indicates a "Propagation cycle" issue when creating or deleting relations in the SAP Advanced Planning and Optimization (APO) module. This error typically arises in the context of planning and scheduling, particularly when dealing with the relationships between different objects, such as products, resources, or production orders.
  Cause:
  The propagation cycle error occurs when there is a circular dependency in the relationships between objects. This means that the system detects that the changes you are trying to make would create a loop in the dependency chain, which can lead to inconsistencies in planning data. For example, if Object A depends on Object B, and Object B also depends on Object A, this creates a cycle that the system cannot resolve.
  Solution:
  To resolve the /SAPAPO/OM_TS079 error, you can take the following steps:
  
  
  Analyze Relationships: Review the relationships between the objects involved. Identify any circular dependencies that may exist. You can use transaction codes like /SAPAPO/OM to visualize and analyze the relationships.
  
  
  Modify Relationships: If you find a circular dependency, you will need to modify the relationships to eliminate the cycle. This may involve:
  
  Deleting or changing the relationship that creates the cycle.
  Adjusting the planning parameters or settings to avoid the circular dependency.
  
  
  
  Check for Inactive Objects: Sometimes, inactive or obsolete objects can cause unexpected relationships. Ensure that all objects involved are active and relevant.
  
  
  Use the Planning Book: If you are using a planning book, check the settings and ensure that the planning book does not have conflicting settings that could lead to cycles.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of APO you are using. There may be specific guidelines or patches available that address this issue.
  
  
  Testing: After making changes, test the creation or deletion of relations again to ensure that the error has been resolved.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /SAPAPO/OM for managing relationships and dependencies.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the problem persists after following these steps, it may be beneficial to consult with an SAP expert or your organization's SAP support team for further assistance.