How To Fix TW633 - Disconnected from database

TW633 - Overview

• Message type: E = Error

• Message class: TW - R3trans - Messages

• Message number: 633

• Message text: Disconnected from database

What causes this issue?

R3trans could not logon to the database.

System Response

R3trans is cancelled.

How to fix this error?

Check the SQL Code and eliminate the cause.
In most cases the environment variables are incorrectly set.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message TW633 - Disconnected from database ?

  The SAP error message TW633, which indicates "Disconnected from database," typically arises when there is a loss of connection between the SAP application server and the database server. This can happen for various reasons, and understanding the cause is crucial for resolving the issue.
  Causes of TW633 Error
  
  
  Network Issues: Problems with the network connection between the SAP application server and the database server can lead to disconnections. This could be due to network outages, firewall settings, or routing issues.
  
  
  Database Server Down: If the database server is down for maintenance or has crashed, the SAP application will not be able to connect to it.
  
  
  Resource Limitations: The database server may be experiencing high load or resource limitations (CPU, memory, disk space), causing it to drop connections.
  
  
  Timeout Settings: If the connection timeout settings are too low, the application may disconnect from the database if it takes too long to respond.
  
  
  
  Configuration Issues: Incorrect configuration settings