SAMPLE - REQUEST FOR AUTHORRIZATION TO SUBSTITUE

Gentlemen:

Our contract entered into on     [date]     specifies that we will deliver [specify goods] .

We regret to inform you that the goods herein referred to are unavailable because   [set forth reason].

We are hereby requesting your authorization to subtitute the following product in lieu of the one we cannot obtain: [DESCRIBE]  .  If you are agreeable to this, would you please acknowledge your acceptance by letter.

We will look forward to your response.