Changes to deployable objects must be approved in order to be included in an export operation. This includes channels and postings, as well as any objects on which they depend.
Objects upon which changed and approved channels and postings depend need not have changed themselves in order to be included in the export operation.
If the TimeInterval parameter has a value of zero (0), the export will include all objects that have changed and been approved since the last deployment was performed and the objects upon which they depend. If the site has never been deployed, and you specify zero (0) for the TimeInterval parameter, the entire site will be deployed.
The created SDO file will have its access controls list (ACL) set such that it will only be accessible to users with sufficient administrative privileges, such as running the script that called this method.
This method cannot be called successfully until an authentication method has been called successfully.