Do you have a Personal Account or Business Account ??
If a Personal Account, I don't think you will see your Merchant ID via your Profile - things keep changing. Here's a work around.
* Login to your PayPal Account first and remain logged in.
* Next, go to this link. (https://www.paypal.com/us/webapps/mpp/standard-integration)
* Click on "Create Button".
* Just select the Buy Now item button - all you need to do is go through the steps of creating a button, you really won't use the button, you just need to generate one so you can see your Merchant ID.
* On the Button creation screen, just fill in the Item Name and Price.
* Lower on the form you should see the radio button for "Use my secure merchant account ID".
* Next, click on "Create Button".
* On the next screen, you should see your generated button code.
* Click on "Remove code protection".
* You should now see your Merchant ID - it will be the "value" for the "business" variable.
If you have a Business Account:
* Login to your Account.
* Click on "Profile".
* Click on "Profile and settings".
* You should be on the "My business info" screen.
* There you will see your "Merchant account ID
