Can you reuse product identifiers to buy apps on iOS?

Question

When you select a product identifier in iTunes Connect, should it be unique throughout the app store or in your app? And if you delete a product with a given product identifier, can you reuse it for another product? I tested iTunes Connect, but I do not want to sabotage the most logical ProductID during my testing.

Answer 1

I found that after uninstalling a product with this product identifier iTunes Connect does not allow this identifier to be used again. However, I found a workaround. Product identifiers are case-sensitive, so if you simply change your capitalization when re-using the product identifier, iTunes Connect will not stop you. (However, according to Il Malvagio Dottor Prosciutto, this can be risky.)

In addition, during short-term testing, it does not appear that your product identifiers must be unique throughout the store. I tried some fairly common words that I thought others could use for the product identifier, and they all worked.

Please note that the products I tested on had different recurring subscription dates in the app store. I do not know if the rules are different for other types of products.