Configuring WSDL and XSD Reimport Preferences 
In the SAP NetWeaver Developer Studio, you can configure whether the WSDL and XSD reimport dialogs prompt you to explicitly accept or reject changes in the reimported document. These preferences are relevant in case there are type and service interface changes when you reimport a modified XSD or WSDL file.
Example
You have used a service interface in an automated activity or a type in a data object in your process and the file containing this service interface or data type has been subsequently modified. You need to reimport the modified file. This way, changes are reflected in your process but the process may also become invalid if some operations have been deleted or some types have been changed. You need to reassign the service interface or to recreate the mappings which have become invalid.
If you select the option to automatically accept all changes of the reimported document, the reimported document overwrites silently the one you have used and the reimport dialog with changes is not shown.
Procedure
In the Developer Studio, choose
Window 
Preferences Enterprise Service Modeling Import and Reimport 
.Select the Automatically accept all changes of the reimported document checkbox.
The definitions in the repository are automatically overwritten with the ones in the modified WSDL or XSD file without you being prompted.