How To Fix UPB170 - Items for input and output are the same

SAP Error Message - Details

• Message type: E = Error

• Message class: UPB - BPS: Balance sheet planning messages

• Message number: 170

• Message text: Items for input and output are the same

What causes this issue?

You have selected the same items for input, &V1&, and output, &V2&.

System Response

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

How to fix this error?

Change the items so that they are different.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UPB170 - Items for input and output are the same ?

  The SAP error message UPB170, which states "Items for input and output are the same," typically occurs in the context of planning functions in SAP Business Planning and Consolidation (BPC) or SAP Integrated Business Planning (IBP). This error indicates that the system has detected that the input and output data sources for a planning function are identical, which is not allowed.
  Cause:
  
  Identical Input and Output: The most common cause of this error is that the planning function is configured to use the same data source for both input and output. This can happen if the planning function is not set up correctly or if there is a misunderstanding of how the function should be used.
  Configuration Issues: There may be issues in the configuration of the planning function, such as incorrect settings in the planning function definition.
  Data Model Issues: The data model may not be set up correctly, leading to confusion in the input and output definitions.
  
  Solution:
  
  
  Review Planning Function Configuration:
  
  Go to the planning function definition in the SAP BPC or IBP system.
  Check the input and output settings to ensure they are not pointing to the same data source.
  Modify the configuration so that the input and output are distinct.
  
  
  
  Create Separate Data Sources:
  
  If the intention is to use the same data for both input and output, consider creating a separate output data source that can be used for the output of the planning function.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation for the specific planning function you are using to ensure that you are following the correct procedures and configurations.
  
  
  
  Testing:
  
  After making changes, test the planning function again to ensure that the error is resolved.
  
  
  
  Seek Help from SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance. They can provide guidance based on the specific details of your implementation.
  
  
  
  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: Ensure that users involved in planning functions are adequately trained and have access to the necessary documentation to avoid configuration errors.
  
  By following these steps, you should be able to identify the cause of the UPB170 error and implement a solution to resolve it.