transaction key

[LSVF]

I am enabling authorize.net on my site and do not know what the "transaction key" is. I have searched the forum and also authorize.net and cannot find any reference to "transaction key." The OScdox manual describes it as follows:
Transaction Key :: The transaction key you set in Authorize.net admin
However, I cannot find this in anything I have received from authorize.net. Can someone please point me in the right direction?

Thanks in advance.
LSVF

[Dumb_Question]

you have to go to authorize.net website and issue yourself a key.

[michael_s]

Look a little closer at your a-net admin.

It is under 'Security' on the main page of the authorize net login.

'Obtain transaction key'