The ALDMG includes a table called Unspecified Treasure Allowance Per Session. In ALDMG 16.0, it’s on page 3. There are many questions about this table.
This table comes into play if, and only if, the adventure in it’s entirety does not reward any gold at all.
There were a few AL seasons that did not reward any gold. Gold was a default value. Season 8 (DDAL08) was one such season.
This usually does not apply to hardcover adventures.
If players don’t find any gold found in the adventure, then no, this table does not apply. In this case, the players are rewarded with the gold they found: 0 GP.
If one chapter of a multi-chapter adventure does not reward any gold, but there is gold in other chapters, then no, this table does not apply. In this case, the players are rewarded with the gold they found: 0 GP.
Some official hardcover adventures are multi-chapter, but each chapter is it’s own adventure. For example, Keys from the Golden Vault, and Journeys Through the Radiant Citadel, and Dragon Delves. Each of these adventures would apply the table, if and only if, they don’t reward any gold (usual rules).
This table is for the entire party. Players will split the gold from this table evenly.