problem configuring jms_payment_paypal bundle

[gildas15]

Please when configuring payment using paypal what are the parameters that we are suppose to put here:
username:
password:
signature:

[gildas15]

Please I need someone help please

[daibe]

Use your Paypal API Credentials, do not use your Paypal Account's username or password, to get or create your API credentials head over to your Paypal Live (or sandbox)

Follow the instructions over at: https://developer.paypal.com/docs/classic/api/apiCredentials/#api-signatures

API signatures
To create an API signature:
For live credentials, log in to your PayPal business account at www.paypal.com.
For test credentials, log in to the PayPal sandbox at www.sandbox.paypal.com with a sandbox business account.
Click the settings icon at the top of your PayPal account page and then click Profile and settings.
Note: If you do not see the profile icon on the top right, select Profile, which appears in the top menu on the My Account tab.
From the left menu, click My selling tools.
In the Selling online section, click the Update link for the API access item.
On the API Access page, click Manage API credentials.
Note: If you have already generated an API signature, the API Access page shows a View API Signature link. If you must generate an API signature, delete the existing API signature. If your live application does not use the existing API signature, click View API Signature. Then, click Remove to delete the signature.
Select Request API signature. Then, click Agree and Submit.