On September 30 a loyal customer visited Zades Art Gallery and asked that certain items be set aside for him. The paintings set aside have a cost of $1,300. The customer intends to let Zade know no later than October 2 whether or not he wishes to finalize the sale and have the goods shipped to his home. The freight will cost $50 and will be paid by Zades Art Gallery. Christina is fairly sure the customer will take the paintings; and so she prepared the sales invoice on September 30.

Should these paintings be included in inventory? What IFRS principle does this scenario relate to? When can Zade record the sale? Be sure to explain your thinking.