How To Fix CNV_OM_PRESEL123 - Source &1 for task &2 not found

CNV_OM_PRESEL123 - Overview

• Message type: E = Error

• Message class: CNV_OM_PRESEL - Messages for LT Object Based Preselection

• Message number: 123

• Message text: Source &1 for task &2 not found

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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CNV_OM_PRESEL123 - Details

• The SAP error message CNV_OM_PRESEL123 typically indicates that a specific source for a task in the context of a conversion or migration process is not found. This error is often encountered during data migration activities, particularly when using SAP's tools for data conversion or migration, such as the SAP S/4HANA Migration Cockpit or other data migration tools.
  
  Cause:
  
  Missing Source Data: The source data that is expected for the specified task is not available in the system. This could be due to incomplete data extraction or incorrect configuration.
  Incorrect Task Configuration: The task may not be properly configured, leading to the system being unable to locate the required source.
  Data Mapping Issues: There may be issues with how the data is mapped from the source to the target, causing the system to fail in finding the necessary source data.
  Transport Issues: If the task or related objects were transported from another system, there may be