How To Fix UCT8250 - Source selection is empty due to inverse mapping

UCT8250 - Overview

• Message type: E = Error

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

• Message number: 250

• Message text: Source selection is empty due to inverse mapping

What causes this issue?

A mapping rule is defined in the method. Before reading the source data,
the system maps the data inversely to derive the source selection from
the target selection. However, the resulting source selection is empty.
This is often caused by the use of unsuitable mapping rules.

System Response

The system cannot read the source data.

How to fix this error?

Examine the mapping rules with regards to any complex logic contained in
condition, reassignment, or complex move operators. In particular, make
sure the inversion of each mapping rule does not produce conflicting
results.

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.

UCT8250 - Details

• The SAP error message UCT8250, which states "Source selection is empty due to inverse mapping," 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 in SAP systems.
  
  Cause:
  The error is generally caused by an issue in the mapping configuration where the source selection criteria do not match any records in the source data. This can happen due to:
  
  Inverse Mapping Issues: The mapping defined for the source and target does not align correctly, leading to no valid source records being identified for the target.
  Data Inconsistencies: The data in the source system may not meet the criteria defined in the mapping, resulting in an empty selection.
  Configuration Errors: Incorrect settings in the mapping configuration or transformation rules can lead to this error.
  Missing Data: The expected data might be missing or not loaded into the source system.
  
  
  Solution:
  To resolve