You will enter an API key when you set up your store with Green Bits. You also may have to update your API key periodically. Depending on how many locations you have Metrc access for, the API key you enter may be the same or may be different.
Metrc API keys are user-specific, not location-specific.
If you have Metrc access for multiple stores
If you have these permissions in Metrc for multiple stores and you generate a new API key for one location, you are also updating the API key in Metrc for all locations that you have access to.
In this case, update all locations you have access to with the same API key.
If you only have Metrc access for one location
If you only have Metrc access for one location and you generate a new API key, it is valid for that one location only.
In this case, update your API key for the one location only.