Below is an example letter of thanks for a first order :

Your Name
Company Name
Street Address
City, ST ZIP Code
Date

Recipient Name
Title
Organization Name
Street Address
City, ST ZIP Code

Dear Recipient Name:

You will have already received our formal acknowledgement of your order number 12345 dated 01 June. However as this is your first order with us I felt I must write to say how pleased we were to receive it and to thank you for the opportunity given to us to supply the goods you need.

I hope our handling of your order will lead to further business between us, and to happy and mutually beneficial association.

Sincerely,

Your Name

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