1- According to IFRS 15 Revenue from contracts with customer, revenue from the sale of goods should be recognized at a single point in time when; ?

1- Goods or services have been transferred to customers2- The entity is entitled to consideration for the goods or services transferred to customers3- It is possible that the economic benefits associated with the transaction will flow to the entity4- The costs incurred or to be incurred in respect of the transaction are known with absolute certainty a-2 and4 b-1 and4 c-3 and4 d-1 and2