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Your contacts list might not contain your friend's PayPal email address, or it might not contain an email address at all. Bumping creates a unique identifier th
by natrius 17y ago
Your contacts list might not contain your friend's PayPal email address, or it might not contain an email address at all. Bumping creates a unique identifier that connects all parties and their PayPal accounts where no such identifier previously existed. It is useful.
- jared314 17y agoIt is not unique if too many people are bumping at the same time (e.g. comic con or something).