I have been DMing our party for the final parts of Tomb of Annihilation.

Some parts of the adventure have vast numbers of puzzles. For example, tonight, the party spent almost four hours simply solving puzzle after puzzle with virtually no combat.

They are a high level party and it seems odd giving them zero experience points despite hours of gaming.

Questions and answers seem to be all of the map on different sites regarding awarding XP outside of what is listed in the module.

Some answers clarify that PCs shouldn't be awarded XP for traps - but call out non-combat experience and more complex solutions as acceptable - which these puzzles seem to be a closer fit given the cleverness of the party and their deliberateness.

Other answers mention you can add creatures and non-combat experience up to maximum XP allowable for an adventure.

The first question is whether I am interpreting it correct that, yes, non-combat experience can be rewarded in AL and that it must not exceed maximum XP for an adventure limits.

If so, none of the questions seem to address how you calculate non-combat experience for puzzles.

If allowed, how do you calculate non-combat experience for puzzles like one sees in Tomb of Annihilation?