How To Fix EC402 - Keys which do not correspond to the new type will be deleted

EC402 - Overview

• Message type: E = Error

• Message class: EC - Development environment: Menu Painter

• Message number: 402

• Message text: Keys which do not correspond to the new type will be deleted

What causes this issue?

Certain keys are not permitted in certain function key setting types.
For example, you cannot use F3 in a dialog box.

System Response

The system deletes the key setting when you confirm the warning.

How to fix this error?

If you do not want to delete the setting, choose 'Cancel'.

Error message extract from SAP system. Copyright SAP SE.

EC402 - Details

• The SAP error message EC402 ("Keys which do not correspond to the new type will be deleted") typically occurs in the context of data migration or changes in data structures, particularly when dealing with the SAP Environment Management (EM) or similar modules. This error indicates that there are keys in the system that do not match the expected format or type after a change has been made, such as a data model update or a configuration change.
  
  Cause:
  
  Data Structure Changes: The underlying data structure has been modified, and existing keys do not conform to the new structure.
  Migration Issues: During data migration, some keys may not have been updated or transformed correctly to match the new data type.
  Configuration Changes: Changes in configuration settings that affect how keys are defined or used can lead to this error.
  Inconsistent Data: There may be inconsistencies in the data that prevent certain keys from being recognized under