How To Fix E0857 - EDI: IDoc number is not unique, IDoc not reloaded

E0857 - Overview

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 857

• Message text: EDI: IDoc number is not unique, IDoc not reloaded

What causes this issue?

IDoc &v1& should be retrieved. However, this is not possible because
the document number was not unique in the tables transferred.

System Response

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

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

E0857 - Details

• The SAP error message E0857, which states "EDI: IDoc number is not unique, IDoc not reloaded," typically occurs in the context of Electronic Data Interchange (EDI) when dealing with IDocs (Intermediate Documents). This error indicates that the system has encountered an IDoc number that is not unique, which prevents the IDoc from being processed or reloaded.
  
  Cause:
  
  Duplicate IDoc Numbers: The most common cause of this error is that there are multiple IDocs with the same number in the system. Each IDoc should have a unique identifier, and if the same IDoc number is found more than once, the system will not know which one to process.
  IDoc Processing Issues: If an IDoc has already been processed or is in a status that does not allow it to be reloaded, attempting to reload it can trigger this error.
  Database Issues: In some cases, database inconsistencies or issues with the IDoc processing logic can lead