How To Fix CNV_IUUC_REPLICATION311 - Data is read from all clients during initial load

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_REPLICATION - IUUC replication messages (HANA)

• Message number: 311

• Message text: Data is read from all clients during initial load

What causes this issue?

You want to use an alternative system for the initial load. The
replication system from which data is read during delta-replication is
connected via an RFC-connection and you have specified that the
replication only takes data from a specific client into account.
If you connect the alternative initial load system via a data base
connection, data is read from <ZH>all</> clients of this initial load
system. Therefore the initial load might transfer unwanted data to the
receiver system.

System Response

The system displays this message.

How to fix this error?

You can connect the alternative initial load system via an RFC
connection that uses the correct client. Then, the system will
automatically read data from the specified client only.
If you prefer to use a data base connection to the alternative initial
load system, you must implement a filter rule in the central system that
filters out all data from clients that are not wanted in the receiver
system.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPLICATION311 - Data is read from all clients during initial load ?

  The SAP error message CNV_IUUC_REPLICATION311 indicates that during the initial load of data, the system is attempting to read data from all clients instead of just the specified client. This can lead to performance issues and may not be the intended behavior, especially in scenarios where you want to limit the data extraction to a specific client.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Configuration Issues: The configuration settings for the data replication or initial load may not be set correctly, leading to the system reading data from all clients.
  Client-Specific Settings: The system may not be properly configured to restrict data extraction to a specific client, which can happen if the client settings are not correctly defined in the replication setup.
  Transport Layer Settings: If the transport layer settings are not correctly configured, it may default to reading from all clients.
  
  Solution:
  To resolve the CNV_IUUC_REPLICATION311 error, you can take the following steps:
  
  
  Check Configuration Settings:
  
  Review the configuration settings for the data replication process. Ensure that the settings are correctly defined to limit the data extraction to the desired client.
  Look for any parameters that specify client selection and adjust them accordingly.
  
  
  
  Client-Specific Data Extraction:
  
  Ensure that the data extraction process is set up to only read from the specified client. This may involve adjusting the settings in the relevant transaction codes or configuration tables.
  
  
  
  Review Transport Layer Settings:
  
  Check the transport layer settings to ensure they are configured to limit data extraction to the intended client. This may involve reviewing the transport routes and settings in the SAP system.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation related to the specific data replication or initial load process you are using. There may be specific guidelines or best practices that can help you configure the system correctly.
  
  
  
  SAP Notes and Support:
  
  Check for any relevant SAP Notes that may address this specific error. SAP Notes often provide fixes or workarounds for known issues.
  If the issue persists, consider reaching out to SAP support for assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes related to data replication and initial load processes, such as SLT (SAP Landscape Transformation) or other relevant tools.
  SAP Documentation: Review the official SAP Help Portal for detailed information on data replication and client-specific settings.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to address the CNV_IUUC_REPLICATION311 error and ensure that your data extraction process is functioning as intended.