The NetBackup cloud plugin for AT&T invoked a getLSUList() API call to initiate credential verification and the checkAlive() API call to check if the service is alive.  It was later discovered that we can not count on the existence of an LSU on the vendor side.  The solution involves invoking the getServiceVersion() API prior to passing credentials which will accommodate new credentials which have not been previously associated with an LSU on the vendor side.  This issue will only occur the first time new credentials are validated.  The problem will not occur after credentials have been validated.

The  tpcommand log from an authorization failure will contain these markers:
<2> naidcdedup: att: [CurlRequest::headers]hd:x-emc-tags:is_lsu
<2> naidcdedup: att: [CurlRequest::headers]hd:x-emc-user-tags:lsu_name
<2> naidcdedup: att: [CurlRequest::headers]hd:x-emc-useracl:Netbackup=FULL_CONTROL
<2> naidcdedup: att: [Curl Debug]HTTP code:(404)
<16> naidcdedup: att: [Curl Debug]Error returned from atmos : The requested object was not found. (1003)
<2> naidcdedup: att: [CurlRequest::perform]check_curl_perform_result return:2060018.
<16> naidcdedup: att: [AtmosRestApi::getLSUList]curl_->perform:2060018.
<16> naidcdedup: att: [stspi_open_server]Error:2060018 occurs when check credential.
<16> naidcdedup: libsts opensvh() 12/06/07 15:24:39: v11_open_server failed in plugin C:\Program Files\Veritas\NetBackup\bin\\ost-plugins\libstspiatt.dll err 2060018
...
<16> naidcdedup: libsts opensvh() 12/06/07 15:24:39: v11_open_server failed in plugin C:\Program Files\Veritas\NetBackup\bin\\ost-plugins\libstspigateway.dll err 2060018
<16> Valid_STS_Server: Failed to open server connection to type att_raw server storage.synaptic.att.com: Error = 2060018 file not found