Goal difference or Head to Head?

[roosh]

Just wondering if anyone knows how the groups will be decided if teams end up on the same points; is it goal difference or head to head?

 

[cwy21]

Head to head.

UEFA is head to head (CL, Euros, Europa)
FIFA is goal difference (World Cup, qualifying, Confed cup)

 

[roosh]

Head to head.

UEFA is head to head (CL, Euros, Europa)
FIFA is goal difference (World Cup, qualifying, Confed cup)

Cheers cw