How To Fix WN686 - Transfer of contact persons is not possible; check key mapping settings

WN686 - Overview

• Message type: E = Error

• Message class: WN - Plant master data maintenance (integrated)

• Message number: 686

• Message text: Transfer of contact persons is not possible; check key mapping settings

What causes this issue?

You want to transfer retail sites and the relevant contact person data
between an SAP ERP system and an SAP S/4HANA system.
It is not possible to transfer this data because the
<DS:NA.MDG_ID_MATCH_API_BS011>key mapping API cannot determine the
source system</>.

System Response

During distribution, the system removes the contact person data.

How to fix this error?

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

Procedure for System Administrators

Make the settings required to enable source system determination.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WN686 - Transfer of contact persons is not possible; check key mapping settings ?

  The SAP error message WN686, which states "Transfer of contact persons is not possible; check key mapping settings," typically occurs in the context of data transfer processes, particularly when dealing with contact person data in SAP systems. This error indicates that there is an issue with the mapping of keys between the source and target systems or within the same system.
  
  Cause:
  
  Key Mapping Issues: The most common cause of this error is that the key mapping settings for contact persons are not correctly configured. This could mean that the identifiers for contact persons in the source system do not match those in the target system.
  Missing Data: There may be missing or incomplete data for the contact persons that are being transferred.
  Configuration Errors: Incorrect configuration in the data transfer settings or in the relevant customizing settings in SAP.
  Authorization Issues: The user may not have the necessary authorizations to perform the transfer of