1915023 - A configuration with the path "destinations/NW04_MIGRATION/NW04" does already exist

During RUN-OFFLINE-MIGRATION phase, SUM stops with the following error message:

An error has occurred during the execution of the Run offline migrations step with action execute. Service com.sap.sdt.j2ee.services.servicesimpl.JMTService failed with the following message:
Could not execute migration controllers for action migrate.database;migrate.deploy;migrate.engine.data;migrate.default.data and scenario calculated executed in slot

and in the <SUM_DIRECTORY>/sdt/log/SWITCH/JMT_FRAMEWORK_XX.ERR file, a similar exception like the bellow exists:

com.sap.sdt.jmt.MigrationException: A configuration with the path "destinations/NW04_MIGRATION/NW04" does already exist.
 at com.sap.engine.services.wssec.nw04migration.WSSMigrationController.migrateEngineData(WSSMigrationController.java:101)
 at com.sap.sdt.jmtx.mc.EngineDataMigrationExecuter.executeController(EngineDataMigrationExecuter.java:72)
 at com.sap.sdt.jmtx.mc.AbstractMigrationControllerExecuter.executeMigrationController(AbstractMigrationControllerExecuter.java:410)
 at com.sap.sdt.jmtx.mc.AbstractMigrationControllerExecuter.execute(AbstractMigrationControllerExecuter.java:373)
 at com.sap.sdt.jmtx.migrationtool.MigrationToolImport.execute(MigrationToolImport.java:909)
 at com.sap.sdt.jmtx.migrationtool.MigrationToolImport.migrateEngineDataAndCfg(MigrationToolImport.java:846)
 at com.sap.sdt.jmtx.migrationtool.MigrationToolImport.startTool(MigrationToolImport.java:484)
 at com.sap.sdt.jmtx.migrationtool.MigrationToolImport.main(MigrationToolImport.java:1236)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at com.sap.engine.offline.OfflineToolStart.main(OfflineToolStart.java:162)

Caused by: com.sap.engine.frame.core.configuration.NameAlreadyExistsException: A configuration with the path "destinations/NW04_MIGRATION/NW04" does already exist.
 at com.sap.engine.core.configuration.impl.ConfigurationData.createSubConfigurationInternal(ConfigurationData.java:996)
 at com.sap.engine.core.configuration.impl.ConfigurationData.createSubConfiguration(ConfigurationData.java:895)
 at com.sap.engine.core.configuration.impl.WriteAccessConfiguration.createSubConfigurationInternal(WriteAccessConfiguration.java:1713)
 at com.sap.engine.core.configuration.impl.WriteAccessConfiguration.createSubConfiguration(WriteAccessConfiguration.java:449)
 at com.sap.engine.services.wssec.nw04migration.DestinationServiceConnector.modify(DestinationServiceConnector.java:464)
 at com.sap.engine.services.wssec.nw04migration.DestinationServiceConnector.add(DestinationServiceConnector.java:353)
 at com.sap.engine.services.wssec.nw04migration.WSSMigrationController.migrateEngineData(WSSMigrationController.java:94)
 ... 12 more

• SAP Java Systems release independent;
• OS/DB independent.

WSSMigrationController, NW04_MIGRATION, offlinecfgeditor, shadow instance , KBA , BC-JAS-SEC-WSS , Web Services Security , BC-UPG-TLS-TLJ , Upgrade tools for Java , Problem