One to activate your account - Activate your account by clicking on the link that will be sent from Pesapal to the email account you registered with.
The second one with a consumer key and consumer secret - The consumer and secret key are used while integrating Pesapal into your website.
You can then Log In to your account and complete your business profile. Please note that your must sign and submit a merchant agreement and business documents to begin transacting amounts over KShs. 1,000
You can find more information about opening and setting up your business acccount here.