How To Fix CNV_IUUC_ODQ016 - Connection to source system could not be established

CNV_IUUC_ODQ016 - Overview

• Message type: E = Error

• Message class: CNV_IUUC_ODQ - Error messages for ODQ replication

• Message number: 016

• Message text: Connection to source system could not be established

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_IUUC_ODQ016 - Details

• The SAP error message CNV_IUUC_ODQ016 indicates that there is an issue with establishing a connection to the source system during a data migration or data transfer process. This error is commonly encountered in scenarios involving SAP Landscape Transformation (SLT) or other data replication tools.
  Causes:
  
  Network Issues: There may be network connectivity problems between the source system and the target system.
  Incorrect Configuration: The connection parameters (such as hostname, port, user credentials) may be incorrectly configured in the SLT or data transfer settings.
  Authorization Issues: The user credentials used for the connection may not have the necessary authorizations to access the source system.
  Source System Down: The source system may be down or not reachable due to maintenance or other issues.
  Firewall Restrictions: Firewalls or security settings may be blocking the connection between the systems.
  Service Not Running: The necessary services (like the SLT replication server) may not be running on the source or target system.
  
  Solutions:
  
  Check Network