manage_inventory.links.action.yml

# All action links for this module

manage_inventory.inventory_add:
  # Which route will be called by the link
  route_name: entity.manage_inventory.add_form
  title: 'Add Inventory'

  # Where will the link appear, defined by route name.
  appears_on:
    - entity.content_entity_manage_inventory.collection
    - entity.content_entity_manage_inventory.canonical