The phrase "convey a message" is correct and usable in written English. You can use this phrase to describe when someone is trying to communicate or express a point or idea. For example, "The speaker attempted to convey a message of hope to the audience."
Sometimes his songs convey a message.
He wanted to convey a message.
HIATT: Doesn't that convey a message of approval?
I cannot breathe". He wanted to convey a message.
She was using fashion to convey a message.
"Sometimes they convey a message, a general message, but there's nothing tactical," he said.
Mr. Weiland says that he wanted to better convey a message to the employee.
It's funny how certain objects convey a message — my washer and dryer, for example.
"But those who sent him were trying to convey a message".
He wanted him to convey a message to his mother that he wanted to return.
He asked Baskin to convey a message asking Hamas to prove that Shalit was still alive.
I love the desktop app, it’s always running on my Mac. Ludwig is the best English buddy, it answers my 100 queries per day and stays cool.
Cristina Valenza
Retail Lead Linguist @ Apple Inc.