This extension is available in our marketplace if you need it, purchase it 👍.
To set up the Authorize.Net extension please go to your Authorize account and click on API credentials and Keys.
And get your keys:
Now write your keys here:
NOTE: At the time you create the accounts, you set it up as LIVE or SANDBOX Account, if you want to do it Live the keys will change, we recommend you to create 2 accounts, one for sandbox and another for live.
Fill sandbox App ID and API key with the same previous values.
Enable sandbox only for test purpose.
Glad we can help
Have a nice day.
Regards, Pol Zepeda