How To Fix UPWB161 - Rows cannot be inserted, the layout contains complex lead columns

SAP Error Message - Details

• Message type: E = Error

• Message class: UPWB - Messages for Development Class UPWB

• Message number: 161

• Message text: Rows cannot be inserted, the layout contains complex lead columns

What causes this issue?

The property of the layout, 'Pushbutton for New Rows', has been set to
'true'. However, in the layout, you cannot enter new rows. There may be
various reasons for this: the layout has a complex key column, the
layout can be selected by a selector, or the layout already shows all
possible combinations.

System Response

The system produces a warning and the button for generating new rows is
not displayed on the Web interface.

How to fix this error?

Set the property 'Pushbutton for New Rows' to 'false'.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UPWB161 - Rows cannot be inserted, the layout contains complex lead columns ?

  The SAP error message UPWB161 indicates that there is an issue with inserting rows in a planning layout due to the presence of complex lead columns. This typically occurs in SAP Business Planning and Consolidation (BPC) or SAP BW (Business Warehouse) environments when working with planning layouts that have specific configurations.
  Cause:
  The error arises when:
  
  Complex Lead Columns: The layout you are trying to use has lead columns that are defined as complex. Complex lead columns can include calculations, aggregations, or other advanced features that make it difficult for the system to insert new rows.
  Data Model Restrictions: The underlying data model may have restrictions that prevent the insertion of new rows when complex lead columns are present.
  Incorrect Configuration: The layout may not be configured correctly to allow for row insertions.
  
  Solution:
  To resolve the UPWB161 error, consider the following steps:
  
  
  Review the Layout Configuration:
  
  Check the configuration of the lead columns in the layout. If they are set as complex, consider simplifying them if possible.
  Ensure that the lead columns are defined correctly and are not causing conflicts with the data model.
  
  
  
  Modify the Layout:
  
  If feasible, modify the layout to remove or simplify the complex lead columns. This may involve changing the way data is aggregated or calculated in those columns.
  
  
  
  Check Data Model:
  
  Review the underlying data model to ensure that it supports the operations you are trying to perform. Make sure that the data model allows for the insertion of rows in the context of the lead columns.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidance on handling complex lead columns and layout configurations.
  
  
  
  Testing:
  
  After making changes, test the layout again to see if the error persists. If it does, further investigation into the specific configurations and data model may be necessary.
  
  
  
  Seek Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support or consulting with a technical expert who specializes in SAP BPC or BW.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  Training and Documentation: Familiarize yourself with SAP BPC or BW documentation regarding planning layouts and lead columns to better understand their configurations and limitations.
  
  By following these steps, you should be able to identify the cause of the UPWB161 error and implement a solution to allow for the successful insertion of rows in your planning layout.