Re: could you check my message
You have called the applicant "Mr John". I'm not sure if his name is John Something or his surname is John. Whichever one it is, you need to give his full name in your letter.
Originally Posted by Roaa1
To Whom It May Concern
In support of his application for a Schengen Visa, this is to confirm that Mr [Name and Surname], [date of birth] is currently employed by [name of company] in the role of Executive Director. His salary is $XXXXX per month, before/after tax (as appropriate).
[Position in company]
Remember - correct capitalisation, punctuation and spacing make posts much easier to read.