Credential recognition is the quiet gatekeeper of expat careers, and how much it matters depends entirely on your field. The dividing line is regulation: doctors, nurses, pharmacists, lawyers, teachers, engineers in some countries, architects and accountants face formal recognition processes, often involving credential evaluation, licensing exams, language tests and sometimes supervised practice periods, which can take anywhere from months to years. Unregulated fields, most of tech, business, marketing and creative work, generally need no formal validation at all; employers judge your degree on its face, though a credential evaluation can still strengthen a CV from a lesser-known university.
The process, where required, usually starts with an official equivalency assessment by a designated national body that compares your degree to local standards, using your transcripts, syllabi and certified translations. Professional licensing then runs separately through the relevant professional council or chamber, which is where exams and adaptation periods come in. Some country pairs maintain mutual recognition agreements that shortcut everything, worth checking for your qualification.
Hard-earned advice from many who learned late: start this process before you move, not after, because gathering sealed transcripts and legalized documents from your home institutions is far easier while you are still there, and recognition timelines can otherwise leave you unable to work in your profession for a painful stretch. The immigration or education ministry website of your destination names the exact competent authority.