The phrase "a message on behalf" is correct and usable in written English.
It can be used when conveying information or communication that is being sent as a representative of someone else or an organization.
Example: "I am sending a message on behalf of the committee to inform you about the upcoming meeting."
Alternatives: "a message representing" or "a message for".
"I felt it was necessary carrying a message on behalf of those without a voice.
I was expressing what I felt, but I was also relaying a message on behalf of the team".
Johnson said a Jets official he declined to identify relayed a message on behalf of the team to pipe down.
Hague also read a message on behalf of Lady Thatcher, who was too ill to attend the ceremony.
But instead of a meal, the truck was made to sell a message on behalf of Patagonia, the outdoor-clothing company.
The ministers delivered a message "on behalf of all of us" that developing an Iranian nuclear weapon is "unacceptable", Mr Bush said.
Rather than encourage them to follow my example, I hope my departure will send a message on their behalf so that they can continue to work within the system to make things a little bit better, a little bit at a time.
Pat Robertson, the president of the Christian Coalition, was to deliver a telephone message on behalf of Mr. Ashcroft to half a million supporters across the next few days, said Roberta Combs, executive director of the group.
"One of the positives of her visit is that she is someone able to deliver a direct message on behalf of Kim Jong Un", said Shin Beom-chul, a professor at the Korea National Diplomatic Academy in Seoul.
Good Magazine gave the project a shout-out, but some of the online reactions have taken issue with the concept of advancing a social message on behalf of have-not workers by way of a fashionable product.
"A nearly united Congress is poised to send President Putin a clear message on behalf of the American people and our allies, and we need President Trump to help us deliver that message," he said in a statement.
