Good day @palnew84,
Thank you for your post and welcome to the Community Forum.
PayPal-Partner-Attribution-Id : Identifies the caller as a PayPal partner. To receive revenue attribution, specify a unique build notation (BN) code. BN codes provide tracking on all transactions that originate or are associated with a particular partner. To find your BN code, see Code and Credential Reference.
BN code: Used in your API requests to identify the caller as a PayPal partner. Required for PayPal reporting. See PayPal-Partner-Attribution-Id for more information.
You should be able to access the sandbox BN code.
In order to get the LIVE BN code, you need to have a managed account and undergo a process. If your account is managed then you can check with your Account Manager, if not then you can firstly apply for PayPal Marketplace via page below and waiting for our relevant department's further response.
https://www.paypal.com/us/webapps/mpp/partner-program/contact-us?ref=marketplace
Once applied, relevant department will be reviewing your business details and contact you directly.
Sincerely,
Chiranjeevi
PayPal/Braintree MTS
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