@David 23me Yes, have done it. Assuming you're just changing starting/ending months for your FY and not doing anything super weird, like a 4-4-5, then you just need to add a custom FY to cover the "extra" months. Just make sure everyone from the CEO on down knows that this will make YOY comps difficult/impossible for transition year(s). And then have that response about YOY comps ready to copy+paste when users still end up asking you why their YOY data looks weird.