How To Fix UPP_LB026 - Manually entered or missing values were overwritten by the system

UPP_LB026 - Overview

• Message type: E = Error

• Message class: UPP_LB - Layout Builder: Messages

• Message number: 026

• Message text: Manually entered or missing values were overwritten by the system

What causes this issue?

The system has detected one or more incorrect or missing entries (key
figures or characteristic values).

System Response

Since only one possible value exists (in each case), the system added
them automatically.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

UPP_LB026 - Details

• The SAP error message UPP_LB026 indicates that manually entered or missing values in a certain context (usually related to planning or budgeting) have been overwritten by the system. This typically occurs in the context of SAP's Integrated Business Planning (IBP) or other planning modules where the system automatically calculates or fills in values based on predefined rules or algorithms.
  
  Cause:
  
  Automatic Calculations: The system has rules or algorithms that automatically calculate values based on other data inputs. If you manually enter a value that conflicts with these calculations, the system may overwrite your input.
  Missing Data: If required data is missing, the system may fill in default values or calculated values, which can overwrite any manual entries.
  Data Consistency Checks: The system may have checks in place to ensure data consistency, leading to overwriting of values that do not meet certain criteria.
  
  
  Solution:
  
  Review Input Values: Check the values you have entered manually to ensure they