The online dictionary freeonlinedictionary defines a credential as a letter or certificate giving evidence of the bearer's identity or competence. I am going to make up an example with it.
(ex) John has been unemployed for four months. Ten months ago, he earned a Bachelor's degree by completing an accounting program. Half a year later, he finished a computer program and received an advanced technology certificates. However, his two recent credentials don't help them find a new job easily.
Am I using the word credentials correctly? Please give me your feedback. Thanks.