How To Fix EQ400 - ====== messages 400 - 499 reserved for dis-/reconnection ================

EQ400 - Overview

• Message type: E = Error

• Message class: EQ - Cross-IS-U functions

• Message number: 400

• Message text: ====== messages 400 - 499 reserved for dis-/reconnection ================

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 EQ400 - ====== messages 400 - 499 reserved for dis-/reconnection ================ ?

  The SAP error message EQ400, which falls within the range of messages 400 - 499 reserved for disconnection and reconnection issues, typically indicates a problem related to the connection between the SAP system and the underlying database or application server. This error can occur in various contexts, such as during data processing, report generation, or when accessing certain transactions.
  
  Cause:
  
  Network Issues: Temporary network disruptions can lead to disconnections between the SAP application server and the database.
  Database Locking: If the database is locked or busy, it may not be able to process requests, leading to disconnection errors.
  Timeout Settings: If the connection times out due to inactivity or long-running processes, this error may be triggered.
  Resource Limitations: Insufficient resources (CPU, memory, etc.) on the application server or database server can cause disconnections.
  
  Configuration Issues: Incorrect configuration settings in the SAP system or database can lead to connection problems.
  
  
  Solution:
  
  Check Network Connectivity: Ensure that there are no