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

UPB170 - Overview

• 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