Hi,

On this competition, you can use the standings to get the corresponding group :

rank: 1
team: {
id: 25
name: "Germany"
logo: “https://media.api-sports.io/football/teams/25.png”
}
points: 0
goalsDiff: 0
group: "Group A"
form: null
status: "same"
description: "Promotion - Euro (Play Offs: )"
all: {
played: 0
win: 0
draw: 0
lose: 0
goals: {
for: 0
against: 0
}
}

Best