Get order by legacy id

HI @madhupatel!
You can use the order query and pass the legacy_id as id.
For example, if the legacy_id was 117902188, the query would be something like:

query {
  order(id: "117902188") {
    request_id
    complexity
    data {
      id
      legacy_id
      order_number
      shop_name
      fulfillment_status
      order_date
      profile
      required_ship_date
      shipping_lines {
        carrier
        method
        price
      }
      shipping_address {
        first_name
        last_name
        address1
        address2
        city
        state
        state_code
        zip
        country
      }
      tags
      line_items(first: 2) {
        edges {
          node {
            id
            sku
            quantity
            product_name
            fulfillment_status
            quantity_allocated
            backorder_quantity
            barcode
          }
          cursor
        }
      }
      shipments {
        id
        order_id
        user_id
        warehouse_id
        address {
          name
          address1
          address2
          city
          state
          country
          zip
        }
        shipped_off_shiphero
        dropshipment
      }
      returns {
        id
        reason
        status
      }
    }
  }
} 

You can also check for the id of that order using the uuid query, for example:

query {
  uuid(legacy_id: 117902188, entity: Order) {
    request_id
    complexity
    data {
      legacy_id
      id
    }
  }
}