I had followed your nopCommerce instructions in the supporting document downloaded
from your Website to configure the Paypal direct & Paypal express payment mothod
and setup one Paypal business Account with a Bank Account,every thing should be properly done, but unfortunately during the payment processing once I click on the logo of "Paypal" , unreasonable result came out many times :
LongMessage: Security header is not valid ShortMessage: Security error ErrorCode: 10002, however we couldn't find out this meaning of 10002 from your official document.
,it is very appreciate if can be help.
Wilson
