Check out this guide for the best recommended ways to farm coins in Pokemon Masters! This also includes where you can get coins & what you can exchanged for coins in the game!!!
Table of Contents
Best Ways to Get Coins
Complete Coin Supercourses

With Pearls are rewards, Coin Supercourses are the fastest way to earn coins in the game. These are limited time courses that can only be done thrice per day so do them before they're gone.
Pearls Can be Exchanged for Coins

Pearls and Big Pearls can be exchanged for coins in the Shop. 1 Pearl can get you 1,000 coins while Big Pearls exchanges for 3,000!
Get 10,000 Coins from Fieldwork

In Chapter 3, a Fieldwork optional quest will appear after beating Flannery. Do it and loot the Pokeball in the 4th Area to get 10,000 coins!
Other Ways to Get Coins
Complete Chapter Quests

Most Chapter Quests give out coins upon being completed. You can see how much you get per quest at the very top of the Rewards Page.
Finish Training Courses

Training Courses also reward players with coins when they are. They only give a handful so it's not an efficient way of collecting coins even if they can be repeated.
Check Out the Battle System Guide HereGathered from the Fieldwork

Fieldworks are optional quests that appear during Story Missions. As you explore the areas, you will find random items that you can pick up, including Upgrade Materials and coins.
Recommended Uses for Coins
Buy Move Gauge Slots

Move Gauge Slots extends your Move Gauge during battles. You can increase it with up to 2 more slots by purchasing Move Gauge Slots from the Store.
Purchase Evolution Shards / Crystals

You'll need to use Evolution Shards or Crystals to do the Evolution Sync Pair story and evolve your Pokemon. Since you can only get these from the shop, it's better to save your money for them.
Check Out How to Evolve Pokemon Here