How To Fix CNV_MBT_SHELL074 - Template switch rejected; return to the previous selection

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT_SHELL - Shell Creation

• Message number: 074

• Message text: Template switch rejected; return to the previous selection

What causes this issue?

Selecting the <ZK>Template</> option results in a new data selection.
The data seen in either <ZK>All Values</> or <ZK>Assigned Values</>
comes directly from table CNVTDMS_13_EXCTB. Selection of a standard
template or package results in CNVTDMS_13_EXCTB data being "mixed" with
information from both tables CNVTDMS_13_TEMPL and CNVTDMS_13_SIZE. There
fore, a different set of data is selected and the current set replaced.
Note that this replacement with calculated template or package data has
no effect on the the contents of table CNVTDMS_13_EXCTB until the save
function is used. However note that this table will be changed as soon
as you save. This means that any manually altered values are
overwritten.

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 CNV_MBT_SHELL074 - Template switch rejected; return to the previous selection ?

  The SAP error message CNV_MBT_SHELL074 indicates that a template switch has been rejected during a data migration or conversion process, typically in the context of SAP's Migration Cockpit or similar tools. This error usually occurs when there is an issue with the selected migration template or the data associated with it.
  Causes:
  
  Incompatible Template: The selected template may not be compatible with the current data or configuration.
  Data Validation Errors: There may be validation errors in the data that prevent the switch to the new template.
  Missing Configuration: Required configurations or settings for the new template may be missing or incorrect.
  User Permissions: The user may not have the necessary permissions to switch templates.
  Technical Issues: There could be underlying technical issues, such as system performance or connectivity problems.
  
  Solutions:
  
  Check Template Compatibility: Ensure that the selected template is compatible with the data you are trying to migrate. Review the documentation for the templates to confirm compatibility.
  Validate Data: Review the data for any validation errors. Ensure that all required fields are filled out correctly and that the data adheres to the expected formats.
  Review Configuration Settings: Check the configuration settings related to the migration process. Ensure that all necessary configurations for the new template are in place.
  User Permissions: Verify that the user has the appropriate permissions to perform the template switch. If not, consult with your system administrator to obtain the necessary access.
  Consult Logs: Check the application logs for more detailed error messages that may provide additional context about why the template switch was rejected.
  Return to Previous Template: If the switch is not successful, revert to the previous template and ensure that the process can continue without issues.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for the Migration Cockpit or the specific migration tool you are using for guidance on template management.
  Community Forums: Consider searching or posting in SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to engage SAP support for further assistance.