commerce_inventory-8.x-1.0-alpha6/modules/commerce_inventory_product/commerce_inventory_product.links.task.yml

# Inventory Location routing definition
entity.commerce_inventory_location.inventory_add_product:
  route_name: entity.commerce_inventory_location.inventory_add_product
  base_route: entity.commerce_inventory_location.inventory_add_product
  parent_id: entity.commerce_inventory_location.inventory_subtab
  title: 'Add Product'
  weight: 2