Why does my Pokémon's Evolve button show a task instead of a normal evolve?

That Pokémon has an adventure requirement. Set it as your buddy, complete the task shown under the button — walking, catches, raids, hearts or similar — and the evolve option unlocks.

Does buddy task progress reset if I change my buddy?

No. Progress is saved on the individual Pokémon. You can swap buddies freely and pick up each task where you left off, but the task only advances while that Pokémon is your active buddy.

How do I evolve Ursaring into Ursaluna?

Ursaring only evolves at night during a full moon in-game, with 100 Teddiursa candy. Full moons happen roughly once a month, so it is worth preparing the candy in advance.

How does Inkay evolve in Pokémon GO?

Inkay needs no buddy time at all. Hold your phone upside down and tap Evolve, and it becomes Malamar for 50 Inkay candy — a tribute to the original handheld games, where you flipped the console.

All Pokémon GO Buddy Evolutions and Their Requirements

In the main-series games, friendship evolutions are a quiet background mechanic. In Pokémon GO they became something much more visible: a whole family of evolutions that only unlock once a Pokémon has been your buddy and done some adventuring with you. If you have ever stared at a greyed-out Evolve button with a mysterious task underneath it, this is the complete list of what the game is asking for.

Evolutions tied to time and weather

These Pokémon care about when — and in what weather — you press the evolve button. A few also need walking distance banked as your buddy first.

Pokémon	Evolves into	Requirement	Candy
Amaura	Aurorus	Evolve at night	50
Cosmoem	Lunala	Evolve at night	100
Cosmoem	Solgaleo	Evolve during the day	100
Eevee	Espeon	Walk 10 km as buddy, evolve during the day	25
Eevee	Umbreon	Walk 10 km as buddy, evolve at night	25
Fomantis	Lurantis	Evolve during the day	50
Hisuian Sneasel	Sneasler	Walk 7 km as buddy, evolve during the day	100
Rockruff	Lycanroc (Midday)	Evolve during the day	50
Rockruff	Lycanroc (Midnight)	Evolve at night	50
Rockruff (Dusk-capable)	Lycanroc (Dusk)	Evolve in the evening window, roughly 17:00–19:00	50
Sliggoo	Goodra	Evolve while it is raining in-game	100
Tyrunt	Tyrantrum	Evolve during the day	50
Ursaring	Ursaluna	Evolve at night during a full moon	100
Yungoos	Gumshoos	Evolve during the day	50

Ursaring is the awkward one: Ursaluna only evolves on full-moon nights, which come around roughly once a month, so mark the date when your Teddiursa candy is ready. Sliggoo is the other planner — either wait for real rain on the in-game map or use a Rainy Lure at a PokéStop.

Evolutions with a buddy task

These need a specific job done while the Pokémon is your buddy. Progress only counts while it holds the buddy slot, so set it before you start grinding, not after.

Pokémon	Evolves into	Buddy task	Candy
Charcadet	Armarouge	Defeat 30 Psychic-type Pokémon	50
Charcadet	Ceruledge	Defeat 30 Ghost-type Pokémon	50
Eevee	Sylveon	Earn 70 buddy hearts	25
Galarian Farfetch'd	Sirfetch'd	Make 10 Excellent Throws	50
Galarian Slowpoke	Galarian Slowbro	Catch 30 Poison-type Pokémon	50
Galarian Slowpoke	Galarian Slowking	Catch 30 Psychic-type Pokémon	50
Galarian Yamask	Runerigus	Win 10 raids	50
Hisuian Qwilfish	Overqwil	Win 10 raids	50
Pancham	Pangoro	Catch 32 Dark-type Pokémon	50
Pawmo	Pawmot	Walk 25 km	100 Pawmi candy
Primeape	Annihilape	Defeat 30 Psychic- or Ghost-type Pokémon	100
Spritzee	Aromatisse	Use an Incense	50
Swirlix	Slurpuff	Feed it 25 treats	50

The catch-type and defeat-type tasks are easiest during events that flood spawns with the type you need, or in trainer battles against a friend who deliberately fields the right types. Trainer battles against team leaders and friends count for the defeat tasks, which makes Charcadet and Primeape far less painful than they look.

Evolutions decided by IVs — no buddy required

Two species ignore the buddy system entirely and read their own stats instead. Tyrogue evolves according to whichever IV is highest: Attack gives you Hitmonlee, Defense gives Hitmonchan, and HP gives Hitmontop. If two stats tie for highest, the result is random between the tied options, so appraise before you spend the 25 candy.

Inkay is the series' favourite gimmick: to evolve it into Malamar for 50 candy, hold your phone upside down and then tap Evolve, a nod to how the original 3DS version worked. No buddy slot, no walking — just flip the phone.

Tips before you start

Task progress belongs to the individual Pokémon, not to you, and it is not lost if you swap buddies — you can work on several evolutions in rotation. Walking distance for things like Eevee is tracked per Pokémon too, so a half-walked Eevee keeps its kilometres. Always set the buddy first, do the task second, and evolve while it is still your buddy; evolving after a swap is the most common way these requirements seem to 'bug out' when they have not.