How To Fix RX126 - Subchannels cannot contain further subchannels

SAP Error Message - Details

• Message type: E = Error

• Message class: RX - BW: InfoCatalog

• Message number: 126

• Message text: Subchannels cannot contain further subchannels

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RX126 - Subchannels cannot contain further subchannels ?

  The SAP error message RX126, which states "Subchannels cannot contain further subchannels," typically occurs in the context of SAP's configuration of organizational structures, such as when defining cost centers, profit centers, or other hierarchical structures. This error indicates that there is an attempt to create a subchannel (or sub-entity) within another subchannel, which is not allowed according to the system's configuration rules.
  Cause:
  
  Hierarchical Structure Violation: The primary cause of this error is that the system does not allow a subchannel to have its own subchannels. This could happen if you are trying to create a new level in a hierarchy that is not permitted.
  Incorrect Configuration: The configuration settings for the organizational structure may not be set up correctly, leading to attempts to create invalid relationships.
  Data Entry Error: There may be a mistake in the data entry process where a user inadvertently tries to nest subchannels incorrectly.
  
  Solution:
  
  Review Hierarchical Structure: Check the existing hierarchical structure to ensure that you are not trying to create a subchannel under another subchannel. Ensure that the levels are correctly defined.
  Adjust Configuration: If the configuration allows for subchannels, ensure that the settings are correctly defined in the system. You may need to consult with your SAP administrator or a functional consultant to verify the configuration.
  Correct Data Entry: If the error is due to incorrect data entry, correct the entries to ensure that you are following the allowed structure. Make sure that you are creating channels at the correct level.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on the specific organizational structure you are working with. This can provide insights into the allowed configurations and structures.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific notes related to error RX126. SAP frequently updates its knowledge base with solutions and workarounds for common issues.
  Transaction Codes: Familiarize yourself with relevant transaction codes (like OKEQ for cost center planning) that may help you navigate the organizational structure settings.
  User Roles and Permissions: Ensure that you have the necessary permissions to make changes to the organizational structure. Sometimes, restrictions can lead to errors if the user does not have the right access.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support or consult with an SAP expert who can provide more tailored assistance based on your specific system configuration and requirements.