Mr Dawson caused a furore by spending more than six hours on top of the Burslem Royal Mail depot yesterday, in protest - demanding an apology from his employer after being suspended along with 11 colleagues over bullying claims in 2007.
The 39-year-old, of Ball Green, could not be contacted yesterday, but Communication Workers' Union (CWU) officials said he was looking forward to getting back to work after receiving a written apology.
They said an agreement has been struck with managers that no punishment will be imposed as a result of his actions.
"The lad has been waiting a year for that. He was suspended for six months and was completely exonerated, and this should have come a lot sooner.
"He had all the stress and worry for six months and went back, and they didn't have the good grace to give him the apology he deserves."
Mr Barron added: "We are continuing to seek justice for the others who were suspended by the company.
"We will not stop until we get justice for all of them."
Mr Dawson was among 12 workers from the depot who were suspended over allegations of bullying in September 2007, sparking weeks of strike action.
Seven, including Mr Dawson, were subsequently reinstated.
Yesterday's demonstration at the Scotia Road depot – 12 months on from when Mr Dawson was reinstated – started shortly after 4am and ended at about 11am.CWU area representative Malcolm Brundrett said: "Paul just wants to get on with his job now. It is sad that people have to go through these desperate measures to get an apology but this seems to be the only way to get through to Royal Mail."