___________ (Recipient Details),
___________ (Name of the company),
___________ (Address of the company),
Date: __/__/____ (Date)
Subject: Request for tool validation
I am writing this letter in reference to the product __________ (name of the product/software). On behalf of ___________ (department), I would like to inform you that the product requires validation in order to ensure that it is working properly.
In addition to this, I would like to bring to your notice that the product requires a special ___________ (calibration/modifications/any other) in order to get a certificate from the _________ laboratory.
Therefore, I request you to arrange a tool validation for the tool mentioned above. I hope that you will process this request to avoid any further delay. If you have any concerns regarding this matter, you can always feel free to contact Mr./Ms. _____________ (name and designation) at ____________(contact details).