The following is an example email that could be sent out days after a purchase was made. Feel free to use this sample email to create your own.
Thanks for your recent order (Order #: [TRANSACTION_IDENTIFIER]) placed on [PURCHASE_DATE]. We are writing to let you know that it typically takes us 3-5 business days to process your order before your merchandise will ship. Once it arrives if you have any questions or concerns please reach out at [BUSINESS_EMAIL] or [BUSINESS_PHONE] and we would be happy to assist.