How To Fix RT228 - ALE CPI C error: Target\Program\Client &1, user &2, function &3, TID &4

SAP Error Message - Details

• Message type: E = Error

• Message class: RT - Monitoring infrastructure MSG and alert texts

• Message number: 228

• Message text: ALE CPI C error: Target\Program\Client &1, user &2, function &3, TID &4

What causes this issue?

This message describes the monitoring functions in the Alert Monitor.
Transactional RFC (tRFC, Remote Function Calls) is a function that
transfers data between SAP systems or between an SAP system and an
external component.
Here, you see the log messages for calls with CPI-C errors - calls that
could not be completed due to a connection or communication problem with
the SAP destination system or external destination component. You can
reschedule and repeat these jobs as background processing jobs. Enter
the number of retry attempts in transaction SM59.
Calls with CPI-C errors can be tRFC calls from ALE or tRFC calls from
other applications. You can also use the ALE monitoring tree to
investigate ALE calls with communication errors. The ALE monitoring tree
includes views of calls with communication errors in the ALE queue or
other entities.

System Response

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

How to fix this error?

Each CPI-C error generates a log message. The log message contains the
information you need to identify the call. You can use the analysis
method or transaction SM58 to display CPICERR calls. The display gives
you more information about the problem. Note: You might not find log
messages for all calls with CPI-C errors. The Alert Monitor only has a
limited amount of space for these messages, which means that some might
be deleted. For a complete view of all calls with CPI-C errors, use the
analysis method for the monitoring tree element 'Number of CPI-C
Errors'.
CPI-C errors have level yellow. No red alert is generated, since the
communication problem is often not that severe. For example, the target
system might not be running due to maintenance work. Since calls with
CPI-C errors are repeated automatically, the problem might well be
solved as soon as the destination is available again.
If the CPI-C errors are not caused by a routine problem, such as
maintenance, then you must check the network connection to the
destination server. As well as definite network problems, CPI-C errors
can also be caused by the following:
An inactive gateway process in the calling or destination SAP system
A CPI-C implementation with errors on an external server
Errors in the definition of the destination of the calling system
(transaction SM59).
You can test the connection in transaction SM59.
Once you have solved the problem, the affected tRFC calls and LUWs are
processed automatically, as long as the interval for the retries has not
passed.
Otherwise, you can trigger the processing of an affected LUW manually in
transaction SM58, or in the analysis method for tRFC.

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 RT228 - ALE CPI C error: Target\Program\Client &1, user &2, function &3, TID &4 ?

  The SAP error message RT228, which indicates an "ALE CPI C error," typically arises in the context of Application Link Enabling (ALE) and the Communication Process Interface (CPI). This error can occur due to various reasons related to the configuration or execution of ALE processes.
  Cause:
  
  Configuration Issues: The error may stem from incorrect configuration settings in the ALE distribution model or partner profiles.
  Authorization Problems: The user specified in the error message may not have the necessary authorizations to execute the function or access the target program.
  Target Program Issues: The target program or function module may not be correctly defined or may not exist in the specified client.
  Network Issues: There could be network-related issues preventing communication between systems.
  Data Issues: The data being processed may be invalid or not conforming to expected formats.
  
  Solution:
  
  
  Check Configuration:
  
  Verify the ALE distribution model and ensure that the settings for the logical systems, message types, and partner profiles are correctly configured.
  Ensure that the target program and function module are correctly defined in the system.
  
  
  
  User Authorizations:
  
  Check the authorizations for the user specified in the error message. Ensure that the user has the necessary roles and permissions to execute the target function.
  
  
  
  Validate Target Program:
  
  Confirm that the target program and function module exist in the specified client. You can use transaction SE37 (Function Builder) or SE80 (Object Navigator) to check.
  
  
  
  Network Connectivity:
  
  If the error involves communication between different systems, check the network connectivity and ensure that the systems can communicate with each other.
  
  
  
  Data Validation:
  
  Review the data being processed for any inconsistencies or invalid entries that may cause the function to fail.
  
  
  
  Check Logs:
  
  Review the application logs (transaction SLG1) for more detailed error messages that can provide additional context for troubleshooting.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  WE20: Partner Profiles
  WE21: Port Definition
  BD64: Distribution Model
  SLG1: Application Log
  
  
  
  Documentation: Refer to SAP Help documentation for ALE and CPI for detailed configuration guidelines and troubleshooting steps.
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the RT228 error.
  
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance, providing them with the full error message and context for better diagnosis.