How To Fix RODPS_REPL502 - Source &1 of subscriber is already subscribed to in another combination

SAP Error Message - Details

• Message type: E = Error

• Message class: RODPS_REPL - Messages for the ETL Interface

• Message number: 502

• Message text: Source &1 of subscriber is already subscribed to in another combination

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RODPS_REPL502 - Source &1 of subscriber is already subscribed to in another combination ?

  The SAP error message RODPS_REPL502 indicates that there is a conflict in the subscription setup for a data source in the SAP Landscape Transformation (SLT) Replication Server. Specifically, it means that the source system (indicated by &1) is already subscribed to in a different combination, which prevents the current subscription from being established.
  Cause:
  
  Duplicate Subscription: The source system is already subscribed to a target system or a different configuration that conflicts with the new subscription you are trying to create.
  Incorrect Configuration: There may be an incorrect configuration in the SLT setup, where the same source is being referenced in multiple ways that are not allowed.
  Multiple Replication Scenarios: If you have multiple replication scenarios or configurations, they might be overlapping, causing this error.
  
  Solution:
  
  
  Check Existing Subscriptions: 
  
  Go to the SLT configuration and check the existing subscriptions for the source system. You can do this by navigating to the SLT configuration transaction (e.g., LTRC) and reviewing the subscriptions.
  Identify if the source system is already subscribed to another target or in a different configuration.
  
  
  
  Remove or Modify Conflicting Subscriptions:
  
  If you find that the source is already subscribed in a way that conflicts with your new subscription, you may need to remove or modify the existing subscription.
  Ensure that the new subscription you are trying to create does not overlap with existing ones.
  
  
  
  Review Configuration Settings:
  
  Double-check the configuration settings for the source and target systems to ensure they are set up correctly and do not conflict with each other.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to SLT and replication to understand the constraints and requirements for setting up subscriptions.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance. They can provide more detailed insights based on your specific configuration and setup.
  
  
  
  Related Information:
  
  SLT Replication: SAP Landscape Transformation (SLT) is a tool used for real-time data replication from SAP and non-SAP sources to SAP HANA or other target systems.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as LTRC (SLT Configuration), LTRS (SLT Replication Server), and others that may help in managing subscriptions.
  SAP Notes: Look for SAP Notes related to SLT and replication errors, as they may provide additional troubleshooting steps or patches.
  
  By following these steps, you should be able to identify the cause of the error and take appropriate action to resolve it.