Onboarding or not

[jaxopaxo]

I have a portal where people can create their business, add articles and start selling. I want to give them the ability to use Paypal for payment.
Do I need to use the onboarding flow? Can the user create her account in Paypal with all setting like creating api and so on, and when complete she can go back to the portal, insert the client id and client secret and start selling using her own clientid and client secret? 

[MTS_Saurav]

Hi @jaxopaxo,

Thank you for reaching out to the PayPal Community.

I understand that you have set up a platform or marketplace where you want to onboard the sellers to process payments through PayPal. You can use the PayPal Complete Payments Platform to offer PayPal payment solutions to your sellers. The PayPal Complete Payments Platform is only available to approved partners in the Live environment.

Please Fill out this form to start the Partner approval process. A PayPal representative will evaluate your business needs and contact you about your approval.

NOTE: Testing the PayPal Complete Payments Platform integration in the Sandbox environment does not need approval. You can log in to the PayPal Developer Dashboard to create the Sandbox Partner Account and REST Applications for testing the PayPal Complete Payments Platform integration.

Once you get approved as a Partner, you can onboard your sellers through the Seller Onboarding link.

You can set up multiple PayPal payment solutions for your sellers using the link.

Guide link - https://developer.paypal.com/docs/multiparty/

If you have any other queries or concerns, please create an MTS ticket via - https://www.paypal-support.com/s/?language=en_US with detailed information. We will be happy to assist you.

Sincerely,
Saurav Kumar
PayPal MTS