What is a primary market transaction?

A primary market transaction is a sale made directly from Star Atlas.

A primary market transaction or a sale means that you make a transaction directly with the issuer of the assets, in this case, a purchase from ATMTA, the lead developers of Star Atlas. Every primary sale -- which is indicated by "Star Atlas" in the buyer or seller name -- generates Prosperity Marks.

A secondary market purchase is when a user buys an asset owned/purchased by other Star Atlas users in a pure peer-to-peer transaction. For these transactions, no Prosperity Marks are earned. 

For more information, visit: How do I buy an item