How To Fix IUUC_MAIN004 - Function &1 started on &2 at &3

IUUC_MAIN004 - Overview

• Message type: E = Error

• Message class: IUUC_MAIN - IUUC: Main Message class

• Message number: 004

• Message text: Function &1 started on &2 at &3

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_MAIN004 - Function &1 started on &2 at &3 ?

  The SAP error message IUUC_MAIN004 typically indicates an issue related to the Data Transfer Process (DTP) or the Delta Queue in the context of SAP Landscape Transformation (SLT) or SAP Data Services. This message is often associated with the replication of data from a source system to a target system.
  
  Cause:
  The error message IUUC_MAIN004 can occur due to several reasons, including:
  
  Replication Issues: There may be problems with the data replication process, such as network issues, configuration errors, or problems with the source or target systems.
  Delta Queue Problems: The delta queue may be full or not processing correctly, leading to delays or failures in data transfer.
  Configuration Errors: Incorrect settings in the SLT configuration or DTP settings can lead to this error.
  Performance Issues: High load on the source or target system can cause delays in processing, leading to this error message.
  Authorization Issues: The user executing the function may not have the necessary authorizations