How To Fix WUF066 - Error while copying from &1 to &2: data lost - source = &3, target &4

WUF066 - Overview

• Message type: E = Error

• Message class: WUF -

• Message number: 066

• Message text: Error while copying from &1 to &2: data lost - source = &3, target &4

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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WUF066 - Details

• The SAP error message WUF066 indicates that there was an issue while copying data from one object to another, resulting in data loss. This error typically occurs in the context of data transfer processes, such as when using the SAP Data Transfer Workbench or during data migration activities.
  
  Cause:
  The error message WUF066 can be triggered by several factors, including:
  
  Data Inconsistency: The source data may have inconsistencies or errors that prevent it from being copied correctly to the target.
  Mapping Issues: There may be issues with the mapping of fields between the source and target objects, leading to data loss.
  Data Type Mismatch: The data types of the fields in the source and target may not match, causing the system to reject the data.
  Missing Required Fields: If the target object has required fields that are not populated in the source, this can lead to data loss.
  Technical Errors: There may be underlying technical issues, such