In this rule

Historical Rules · 1 September 2023

Rule 103.6c

Official source text from the 1 September 2023 Rules release

In a multiplayer game using the shared team turns option, first each player on the starting team, in whatever order that team likes, may take such actions. Teammates may consult while making their decisions. Then each player on each other team in turn order does the same.

Find this number in the current Rules