How To Fix IWB_MPS149 - Select only one entry in the top hierarchy (reference)

SAP Error Message - Details

• Message type: E = Error

• Message class: IWB_MPS - Messages for Multi-Product Support

• Message number: 149

• Message text: Select only one entry in the top hierarchy (reference)

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message IWB_MPS149 - Select only one entry in the top hierarchy (reference) ?

  The SAP error message IWB_MPS149, which states "Select only one entry in the top hierarchy (reference)," typically occurs in the context of SAP applications that involve hierarchical data structures, such as planning or reporting tools. This error indicates that the system expects the user to select only one entry from a top-level hierarchy, but multiple entries have been selected instead.
  Cause:
  
  Multiple Selections: The user has selected more than one entry from a hierarchical structure (e.g., a tree or list) where only a single selection is allowed.
  Incorrect Hierarchical Structure: The data structure may not be set up correctly, leading to confusion about which entry is the top-level reference.
  User Interface Limitation: The interface may not clearly indicate that only one selection is permissible, leading to user error.
  
  Solution:
  
  Single Selection: Ensure that you only select one entry from the top hierarchy. Review your selections and deselect any additional entries.
  Check Hierarchy: If you are unsure which entry to select, review the hierarchy to understand the relationships and dependencies between the entries.
  User Training: If this error occurs frequently, consider providing training or documentation to users to clarify how to navigate the hierarchy correctly.
  System Configuration: If the issue persists and seems to be related to the system configuration, consult with your SAP administrator or technical team to ensure that the hierarchy is set up correctly and that the user interface is functioning as intended.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the specific module you are working with to understand the expected behavior of hierarchical selections.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered and resolved similar issues.
  
  If the problem continues after following these steps, it may be beneficial to reach out to SAP support for further assistance.