How To Fix IUUC_MAIN055 - Keyfield difference check completed - no differences found

SAP Error Message - Details

• Message type: E = Error

• Message class: IUUC_MAIN - IUUC: Main Message class

• Message number: 055

• Message text: Keyfield difference check completed - no differences 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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message IUUC_MAIN055 - Keyfield difference check completed - no differences found ?

  The SAP error message IUUC_MAIN055 indicates that a key field difference check has been completed, and no differences were found between the source and target systems during a data replication or synchronization process. This message is typically associated with the SAP Landscape Transformation (SLT) Replication Server, which is used for real-time data replication.
  Cause:
  
  No Data Changes: The most straightforward reason for this message is that there have been no changes in the source system that need to be replicated to the target system.
  Configuration Issues: There may be configuration settings in the SLT that are not set up correctly, leading to the system checking for differences but finding none.
  Data Consistency: The source and target systems may already be in sync, meaning that the key fields being checked are identical.
  Replication Filters: If there are filters applied in the SLT configuration, they may be preventing certain data from being replicated, leading to the message indicating no differences.
  
  Solution:
  
  Verify Data Changes: Check the source system to ensure that there are indeed changes that need to be replicated. If there are no changes, the message is expected.
  Check SLT Configuration: Review the SLT configuration settings to ensure that they are correctly set up for the data you want to replicate. This includes checking the table mappings and any filters that may be applied.
  Monitor Replication Jobs: Use transaction codes like SLT_MONI to monitor the replication jobs and check for any errors or warnings that may indicate issues with the replication process.
  Reinitialize Replication: If you suspect that the systems are not in sync or if there have been significant changes in the source data, consider reinitializing the replication process. This can be done by stopping the replication, deleting the existing data in the target, and then starting the replication again.
  Check Logs: Review the SLT logs for any additional information or warnings that may provide insight into why the key field difference check was performed.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SLT_MONI for monitoring, SLT_CONFIG for configuration, and SLT_REPL for replication settings.
  Documentation: Refer to SAP Help documentation for SLT to understand the configuration and operational aspects of the replication process.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues or provide updates related to the SLT and the IUUC_MAIN055 message.
  
  In summary, the IUUC_MAIN055 message indicates that the key field difference check found no discrepancies, which can be normal if there are no changes to replicate. However, if you expect changes and see this message, it may require further investigation into the configuration and status of the replication process.