| Tourist visit | Hotel, licensed tour operator, resident host, friend or family member | Reservation or itinerary; host ID and address when staying privately | A booking may be sufficient for ordinary tourism, but a formal host letter may be requested for private accommodation. |
| Business visit | Registered company, business partner, employer or trade-event organizer | Company registration, meeting schedule, signatory details and applicant employer letter | A business invitation does not authorize employment. |
| Family or friend visit | Citizen or legally resident host | Host ID/residence permit, proof of address and relationship evidence | The host should state accommodation and financial responsibility accurately. |
| Medical treatment | Hospital, clinic or specialist | Appointment, treatment plan, cost estimate and payment arrangements | Medical documents may need to explain any accompanying person. |
| Study or academic visit | University, college or research institution | Admission/registration, course dates, funding and accommodation | Long study normally requires the correct study permit, not only an invitation. |
| Conference or event | Organizer, association, university or ministry | Registration, program, venue, dates and delegate status | The letter should match the event registration and travel dates. |
| Volunteer or NGO visit | Registered NGO, charity or development organization | Registration, project description, assignment dates and funding | Volunteer activity may require separate authorization. |
| Employment | Employer or authorized government body | Employment contract, employer registration and permit documents | An invitation never replaces a work permit. |
| Official, media, sports or cultural visit | Relevant ministry, organization, federation, media partner or cultural institution | Official program, accreditation and any sector permit | Press, filming, sports or official accreditation may be required separately. |