How To Fix CNVMBTRFC026 - Subproject &1 with destination &2 address two different control systems.

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 026

• Message text: Subproject &1 with destination &2 address two different control systems.

What causes this issue?

Cause of the error
The synchronization check finds out that there is a conflict with
another control system. The error message give the information which
subproject and destination is affected. In the detaild status you also
get the information which destination is affected.

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

The check found out that in the system/client where we wanted to
synchronize the destinations already another control system is using the
same subproject name with an active package. You can check this by going
into the affected system/client and calling transaction SE11 or any
other transaction for showing the table entries. Enter the table name
cnvmbtpack and press button 'Display'. Press button 'Contents' in the
application toolbar. Enter the affectd subproject name into field
subproject. Press button 'Execute' or key F8. You will see the active
package of the subproject. If there are two active packages or a package
with system/client data that is different from the affected control
system then we have a conflict.
Solving the conflict
Option 1.
The conflict can be solved by creating a new subproject in the control
system where the conflict is shown. The other control system is not
affected because the synchronization from the affected control system
aborted and no destination data were overwritten.
Option 2.
In the control system where the error occurs you can change the
destination ids. This can be done by pressing button 'SEARCH' in the
registry 'Definition'. Before this you should create the destinations
you need in the transaction SM59. With the search function you can
search for your created destination. Select your destination in the
table with the results and press button 'Use'. The destination id of the
execution target you have selected will be replaced by your destination
id. Do this also with the all destinations used for the affected system.
If all destination ids are replaced do the synchronization. After this
the synchronization status will be changed to green.

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 CNVMBTRFC026 - Subproject &1 with destination &2 address two different control systems. ?

  The SAP error message CNVMBTRFC026 typically occurs in the context of a data migration or conversion process, particularly when using the SAP Landscape Transformation (SLT) or similar tools. This error indicates that a subproject is trying to address two different control systems, which can lead to inconsistencies or conflicts in data processing.
  Cause:
  The error arises when:
  
  Configuration Issues: The subproject is incorrectly configured to point to multiple control systems, which can happen if the destination settings are not properly defined.
  Data Consistency: The system detects that the same subproject is attempting to interact with two different control systems, which can lead to data integrity issues.
  Transport Layer Issues: There may be issues with the transport layer or RFC (Remote Function Call) connections that are not set up correctly.
  
  Solution:
  To resolve the CNVMBTRFC026 error, you can take the following steps:
  
  
  Check Configuration:
  
  Review the configuration of the subproject in the SAP system. Ensure that it is set up to point to only one control system.
  Verify the destination settings in transaction SM59 (RFC Destinations) to ensure that the correct control system is being referenced.
  
  
  
  Review Subproject Settings:
  
  Go to the relevant transaction or tool used for the migration (e.g., transaction CNV_MBT).
  Check the settings for the subproject and ensure that it is not inadvertently configured to connect to multiple control systems.
  
  
  
  Correct RFC Connections:
  
  Ensure that the RFC connections are correctly defined and that there are no duplicate or conflicting entries.
  Test the RFC connections to ensure they are functioning correctly.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or notes related to the specific migration tool you are using. There may be specific guidelines or known issues that can provide further insight.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP Support for assistance. Provide them with the error message details and any relevant logs or configuration settings.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CNV_MBT, SM59, and SLT for data migration.
  SAP Notes: Search for SAP Notes related to CNVMBTRFC026 for any patches or updates that may address this issue.
  Documentation: Review the SAP Help Portal for documentation on data migration and conversion processes, as well as best practices for configuring control systems.
  
  By following these steps, you should be able to identify and resolve the cause of the CNVMBTRFC026 error in your SAP environment.