How To Fix CNVMBTRFC142 - Bad connection state for destination &1 - reason &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CNVMBTRFC - Messages used in RFC Management and its objects

• Message number: 142

• Message text: Bad connection state for destination &1 - reason &2

What causes this issue?

An RFC destination can have a connection state. If the destination got a
bad connection state, this is the connection check detects problems with
that destination, then no connection checks will be performed by the RFC
Management for that destination. For example the Destination to the
sender system in the control system has its connection state and the
Destination to the sender system in the sender system itself also has
its own connection state. So it can be that the connection state of the
sender destination in the control system is OK but in the sender system
the destination got a bad connection state.
The connection state represents the state of a destination at the time
where the last check were performed. It could be that the rfc check
found out that the password of the destination is not OK. In that case
the destination get the connection state 'P'. If the user fixed the
issue and the destination is working fine again then the state has to be
reset by the user. Resetting the state can be done in different ways.
Reset state in the System Landscape
In the system landscape you can press button 'Check state'. With the
check the destinations with bad connection state will be checked again.
If the reason for the bad connection state don?t exist anymore then the
status will be reset. In contrast to the 'Check state' the refresh
button won?t do the connection checks for the destinations with bad
connection state.
Reset the connection state of a single destination
The state for a single destination can be reset by transaction
RESET_RFC_STATE. This has to be done for each destinaton with bad
connection state in the system where the destination is created.
Reset connection state in the RFC Management
A prerequisite is the existence of a package. To call the RFC Management
you have to execute the activity 'Define RFC Destinations' in the phase
'Package settings'. You can reset the state in the RFC Management in tab
'Definition'. For example If you want to reset the state for the sender
destination in the sender system, mark the row where the system role
'Sender System'. Afterwards press button 'State'. You will see a table
with all the destinations the package needs in the sender system. Mark
the destination by clicking with the cursor on the row where you want to
reset the state and press button 'Reset'. If the reason for the bad
connection state doesn?t exist anymore then the connection state will be
reset.
The fastest way to reset the connection state is to do a refresh in the
RFC Management. If at least one destination got a bad connection state
then the refresh can be done with a full refresh. The full refresh means
that a connection check for the destinations with bad connection state
will be done. With a successful connection check the connection state
will be reset.
Reasons for a bad connection state:
RFC check timed out
The reason for the bad connection state was that the RFC connection
check exceeds a period of time. To avoid the calling program from
getting a time out we do the rfc checks asychronously. If the connection
check don?t respond in a period of time then the destination get the
connection state 'N'.
User/password issue
The reason for the bad connection state was that the RFC connection
check faced an issue with the user or password of the RFC destination.
In that case the RFC destination gets the connection state 'P'.
Analysing your destination in SM59
You get a lot of information about your destination in transaction SM59.
Start with checking the connection by pressing button 'Test connection'
or in the menu via Test->connection or press key <(><<)>F8>. It will be
checked whether it is possible to connect to the system. The user data
like user name and password won?t be checked. If you want to check the
validity of the user and password you have to do an authorization check.
You can execute it via the menu Test->authorization or pressing key <(>
<<)>F6>. In tab 'Logon/Security' you can see the settings for logon
which includes language, client, user, password. Dependend on the
different settings like Trusted Systems and Load Balancing the settings
can differ. E. g. you don?t have a password in a destination for Trusted
Systems.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNVMBTRFC142 - Bad connection state for destination &1 - reason &2 ?

  The SAP error message CNVMBTRFC142 indicates a problem with the connection state for a specific destination in the system. This error typically arises in the context of Remote Function Calls (RFC) when there is an issue with the connection to a remote system or service.
  Cause:
  The error message can be triggered by several factors, including:
  
  Network Issues: There may be network connectivity problems between the SAP system and the destination system.
  Configuration Errors: The RFC destination may not be configured correctly in the SAP system.
  System Availability: The target system may be down or not reachable.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary permissions.
  Timeouts: The connection may have timed out due to inactivity or long processing times.
  
  Solution:
  To resolve the CNVMBTRFC142 error, you can follow these steps:
  
  
  Check Network Connectivity:
  
  Ensure that the network connection between the SAP system and the destination is stable and operational. You can use tools like ping or traceroute to test connectivity.
  
  
  
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Check the configuration of the RFC destination that is causing the error. Ensure that the connection parameters (such as the target host, system number, and client) are correct.
  Test the connection using the "Connection Test" option in SM59.
  
  
  
  Check System Availability:
  
  Ensure that the target system is up and running. If it is down, you will need to wait until it is back online.
  
  
  
  Review User Authorizations:
  
  Check the user credentials used for the RFC connection. Ensure that the user has the necessary authorizations to perform the required actions on the target system.
  
  
  
  Monitor for Timeouts:
  
  If the connection is timing out, consider increasing the timeout settings in the RFC destination configuration.
  
  
  
  Check Logs:
  
  Review the system logs (transaction SM21) and the developer trace files (transaction ST11) for any additional error messages or clues that may help diagnose the issue.
  
  
  
  Restart Services:
  
  If applicable, restart the relevant services or instances on both the source and target systems to refresh the connection.
  
  
  
  Related Information:
  
  RFC (Remote Function Call): A protocol used in SAP systems to enable communication between different SAP systems or between SAP and non-SAP systems.
  Transaction Codes:
  
  SM59: Manage RFC destinations.
  SM21: View system logs.
  ST11: Access developer traces.
  
  
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  If the issue persists after following these steps, consider reaching out to your SAP Basis team or SAP support for further assistance.