I am working with AACC 6.2 and I want to get/set Call Attchment Data(CAD), but I don't find any information from doc to do that, there is any solution?

Sorry I dont have make it clear, I mean there any method I can get/set CAD in SCE scripts or VP Application?

See previous thread:
Use TAPI Call Data attachment to attach script and call data to a call, and pass
that information to a TAPI server. The first data parameter of the SEND INFO
command is interrogated. If the text in the parameter is %TAPI%, then the data
in the remaining parameters is sent to TAPI. The parameters of the SEND INFO
command are attached to a call using the published TAPI IVR/CallData
interface.
Example of script syntax
ASSIGN "%TAPI%" TO HAI_STRING_cv
SEND INFO HAI_AppId HAI_STRING_cv, CLID, HAI_AGENTID_cv
The preceding example sends the CLID and the agent ID to the TAPI
application.

Hi Audrey, I want to know whether below method is working for AACC 6.2 + MBT 5.2.1 environment? I see there isn't TAPI server in Aura MBT 5.2.1!

Hello,
Currently that mechanism is only available for AML (CS1K) installs.
The only option at the moment for call attach data in SIP would be using Open Networking with Landing Pads.
John