Unable to migrate mail to 'google apps mail ' with Other domain user credentials

I am trying to Migrate mail on 'Google Apps Mail'. When i give Admin credentials it get migrated successfully. But when i use Domain user credential it shows error " Execution of request failed: ".

I want to migrate mails to user not to Admin Us开发者_Go百科er.Then why there is need of Admin credentials ?

I am using Google API Ver 2.

Thanx

Under Advanced tools.Under "User email uploads" just Check "Allow users to upload mail using the Email Migration API. (Administrators always have access to this API.) " Option i will work :)

Instead of using API to migrate, you can use this online tool at Google Marketplace.