How To Fix EJ100 - A value appears double in field &1

EJ100 - Overview

• Message type: E = Error

• Message class: EJ - Formal error for ISU-IDocs

• Message number: 100

• Message text: A value appears double in field &1

What causes this issue?

A value in the field or the field sequence &V1& comes up twice in a
segment sequence. The existence of double values is an error.
The system has recognized the IDoc as incorrect and can not perform the
requested processing.

How to fix this error?

Check the current field value of the field. Determine which program
created the incorrect IDoc segment. Generally, IDocs are created from
external programs.

Error message extract from SAP system. Copyright SAP SE.

EJ100 - Details

• The SAP error message EJ100, which states "A value appears double in field &1," typically indicates that there is a duplicate entry in a field that is expected to have unique values. This error often occurs in the context of data entry or data processing within SAP, particularly in modules related to finance, logistics, or master data management.
  
  Cause:
  
  Duplicate Entries: The most common cause is that the same value has been entered more than once in a field that requires unique values. This could happen during data entry or when importing data from external sources.
  
  Configuration Issues: Sometimes, the configuration of the system may allow for duplicates in a field that should be unique, leading to this error.
  Data Migration: If data has been migrated from another system, it may contain duplicates that were not identified before the migration.
  User Error: Users may inadvertently enter the same value multiple times, especially in bulk data