UStorage.Execute

Executes all pending actions of an ActionGroup atomically. If one action fails, no action will modify data.

S_OK or an error from the Error Codes.

The function only returns when all actions are executed on the server. In case of a failure, you can get detailed information about the errors by calling UStorage.GetLastError on the objects that are part of the transaction. In case of a write error, only the first error will be reported (because the execution will end after the first error). In case of a read error, the errors for all objects are reported (because the execution continues even if loading on one object fails).