I'm DMing for an online "Adventurer's League" group. I'm currently using DDEX1-1 (Defiance in Phlan), which consists of five mini adventures, each granting 100 XP at the end of the mini adventure.
The one hour recommended play time is always stretched to three hours, so I decided to host one mini adventure per day. Then it occurred to me that the PCs might level up from 2 to 3 in the middle of the adventure, but between mini adventures.
Can a PC that levelled up in the middle of the adventure, but between mini adventures, keep playing the mini adventures?
This DDEX1-1 has level range of 1-2, if I interpret this line correctly.
This introductory adventure is designed for three to seven 1st- level characters, and is optimized for five 1st level characters. It can also be played by 2nd level characters, although those characters might have a much easier time playing the adventure. Characters outside this level range cannot participate in this adventure.