How To Fix B1606 - Connection terminated (TXCOM destination &); see R/2 or SAP system log

B1606 - Overview

• Message type: E = Error

• Message class: B1 - ALE group messages

• Message number: 606

• Message text: Connection terminated (TXCOM destination &); see R/2 or SAP system log

What causes this issue?

The connection to R/2 with the TXCOM destination &v1& was suddenly
broken off.

How to fix this error?

Check that the R/2 system, the connection to R/2 and the
gateway are all available.
The sending of this IDoc will be restarted automatically as long as the
maximum repeat count is not exceeded.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message B1606 - Connection terminated (TXCOM destination &); see R/2 or SAP system log ?

  The SAP error message B1606, which indicates that a connection has been terminated for a specified TXCOM destination, typically arises in the context of communication between SAP systems or between an SAP system and an external system. This error can occur due to various reasons, including network issues, configuration problems, or system resource limitations.
  Causes:
  
  Network Issues: Temporary network outages or instability can lead to connection terminations.
  Configuration Errors: Incorrect settings in the RFC (Remote Function Call) destination or in the communication parameters can cause this error.
  System Resource Limitations: If the SAP system is under heavy load or if there are insufficient resources (like memory or CPU), it may terminate connections.
  Timeout Settings: If the communication takes longer than expected, it may exceed timeout settings, leading to termination.
  Firewall or Security Settings: Firewalls or security settings may block the connection, causing it to be terminated.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the systems