Please let me know when the order can be shipped.

Please could you give me the status of this order, when will it be shipped? Please could you give me the status of this order, when was it shipped?

I mean "When is it". Actually, it is 2 questions. I should care more about the punctuation.

I wonder do you mean 'when is it' or 'when it is'?

No, it is not correct. You are using two questions here. And why the comma?