Amazon sellers do not necessarily have to make purchases through public-to-public transfers, but this payment method is considered the safest and most reliable. Public-to-public transfers ensure that funds are transferred directly from one company's account to another, which can well protect the interests of suppliers and buyers, especially for high-value and large-scale purchases.

At the same time, public-to-public transfers are also conducive to preventing fraud and disputes, which is even more important in Amazon shopping. Therefore, it is recommended that sellers use public-to-public transfers to ensure safe and reliable purchases.