How To Fix WN661 - Customer or supplier assignment of plant &1 different in target system

WN661 - Overview

• Message type: E = Error

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

• Message number: 661

• Message text: Customer or supplier assignment of plant &1 different in target system

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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WN661 - Details

• The SAP error message WN661 indicates that there is a mismatch in the customer or supplier assignment for a specific plant between the source system and the target system during a data transfer or migration process. This typically occurs when you are trying to replicate or transfer data related to a plant, and the customer or supplier assignments do not match between the two systems.
  
  Cause:
  
  Data Inconsistency: The customer or supplier assignments in the source system may not be consistent with those in the target system. This can happen if changes were made in one system but not reflected in the other.
  Missing Data: The target system may not have the necessary customer or supplier records that are referenced in the source system.
  
  Configuration Issues: There may be configuration differences between the two systems that affect how customer or supplier assignments are handled.
  
  
  Solution:
  
  Data Comparison: Compare the customer and supplier assignments in both the