I have created a new Sandbox account in PayPal. This is a merchant account. I've clicked on the profile button and there I've checked the API Credentials page. The page is totally empty.
How can I get them? Should I trigger something else to have them generated?
Thanks!
Make sure the account is a premier or a business account. You will not have any if this is for a personal account. If you have the correct account type, try logging into the actual test account and going to the profile, and then to the API credentials page and manually generate them. See if this allows you to generate the credentials that you are needing.