How To Fix GU939 - No entry exists for source field & in the field movements

GU939 - Overview

• Message type: E = Error

• Message class: GU - FI-SL utilities

• Message number: 939

• Message text: No entry exists for source field & in the field movements

What causes this issue?

There is no entry for source field &v1& in the field movements. The
system will therefore ignore this field of the source table during
the conversion, that is, the field will not be transferred. The data
will thus be summarized for this field.

System Response

How to fix this error?

Check whether or not field &V1& should be transferred to the target
table.
If you want a summarization to take place, you must set the indicator
'Summarization during conversion' when you convert the summary table
because the system might otherwise terminate processing during the
conversion.

Error message extract from SAP system. Copyright SAP SE.

GU939 - Details

• The SAP error message GU939 ("No entry exists for source field & in the field movements") typically occurs in the context of field movements in the SAP system, particularly when dealing with the configuration of field movements in the context of inventory management or material movements.
  
  Cause:
  The error message GU939 indicates that the system is unable to find a corresponding entry for a specified source field in the field movements configuration. This can happen due to several reasons:
  
  Missing Configuration: The field movement configuration for the specified source field has not been set up in the system.
  Incorrect Field Mapping: The source field specified in the transaction does not match any of the configured fields in the field movements.
  Data Inconsistency: There may be inconsistencies in the data or configuration that prevent the system from recognizing the source field.
  Transport Issues: If the configuration was recently transported from another system, it may not have been