Thanks for the feedback. I've tried three different sets of API credentials now. There are two areas of concern. One - when I enter the Sandbox environment as a seller, I can log in with no difficulty. When I follow the WebAssist instructions to go to My Business Setup, that page loads. When I click on the "Get Started" button in order to accept the terms of business, the page from PayPal won't load. I realize this is not a WA problem, but perhaps you've seen it before...
The second is more of a clarification. In the WA_Globals.php, lines 58-61 allow me to set up my sandbox seller access. I have a general Sandbox account with a username/password that I use to access SB. I then have 2 test accounts - one as a seller and one as a buyer. (I understand that I need to change this for the live site with my client's info)
My question is: Which set of usernames/passwords do I use?
$WAGLOBAL_Paypal_Sandbox = "true"; //Set to true if you wish to use the PayPal Sandbox for testing transactions.
$WAGLOBAL_Paypal_User = "API Username [--] or General Sandbox Account Username [--]";
$WAGLOBAL_Paypal_Password = "API Password [--] or General Sandbox Account Password [--]";
$WAGLOBAL_Paypal_Signature = "[--]"; - the API signature is pretty clear; minus trailing/leading spaces
Thanks - I'm eager to get this site launched and don't want to go live just to test it...