How To Fix UCT8257 - Source selection derived from target field &1 is empty

UCT8257 - Overview

• Message type: E = Error

• Message class: UCT8 - Message class for UCT8(mapping)

• Message number: 257

• Message text: Source selection derived from target field &1 is empty

What causes this issue?

The system derives the source selection from the selection for target
field &V1&. The resulting source selection is empty.

System Response

The system cannot read any source data.

How to fix this error?

Examine the mapping rule for field &V1&. Make sure that the inversion of
the mapping rule does not produce an empty selection or lead to
conflicting values.

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 UCT8257 - Source selection derived from target field &1 is empty ?

  The SAP error message UCT8257, which states "Source selection derived from target field &1 is empty," typically occurs in the context of data transfer or mapping processes, particularly when working with SAP's data migration tools or during the configuration of data sources and targets in various modules.
  
  Cause:
  The error indicates that the system is trying to derive a source value based on a target field, but the target field specified (denoted by &1) is empty or not populated. This can happen due to several reasons:
  
  Missing Data: The target field may not have been populated with any data, leading to an inability to derive the source value.
  Incorrect Mapping: There may be an issue with the mapping configuration where the source and target fields are not correctly aligned.
  Data Transfer Issues: If data is being transferred from one system to another, there may be issues with the data extraction or transformation process.
  Configuration Errors: There