How To Fix STC_CONT_CFG_ENTITY018 - Structure &1 is not flat

SAP Error Message - Details

• Message type: E = Error

• Message class: STC_CONT_CFG_ENTITY - Technical Configuration Entity Messages

• Message number: 018

• Message text: Structure &1 is not flat

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message STC_CONT_CFG_ENTITY018 - Structure &1 is not flat ?

  The SAP error message STC_CONT_CFG_ENTITY018, which states "Structure &1 is not flat," typically occurs in the context of SAP Solution Manager or during the configuration of certain business processes. This error indicates that the structure being referenced is not a flat structure, meaning it contains nested or hierarchical elements, which is not allowed in the context where it is being used.
  Cause:
  
  Non-Flat Structure: The structure defined in the configuration is hierarchical or contains substructures, which is not compatible with the expected flat structure.
  Incorrect Configuration: The configuration might be set up incorrectly, leading to the system expecting a flat structure when a complex one is provided.
  Data Model Issues: The data model being used may not align with the requirements of the process or configuration being executed.
  
  Solution:
  
  Review the Structure: Check the structure definition in the relevant transaction (e.g., SE11 for Data Dictionary). Ensure that the structure is indeed flat and does not contain nested tables or structures.
  Modify the Structure: If the structure is not flat, consider modifying it to meet the requirements. This may involve flattening the structure by removing nested elements or creating a new flat structure that meets the needs of the configuration.
  Check Configuration Settings: Review the configuration settings in the relevant transaction or application area to ensure that they are set up correctly and that they reference the correct flat structure.
  Consult Documentation: Refer to SAP documentation or notes related to the specific module or process you are working with to understand the requirements for structures.
  Testing: After making changes, test the configuration to ensure that the error is resolved and that the process works as expected.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to this error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE80 (Object Navigator), and ST22 (Dump Analysis) for troubleshooting.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.