Visitors in Indonesia that have purpose such as participating seminars, are required visit visa that is issued by Indonesian Embassy. Besides that, visitors also have to make sure that their passport are valid for at least six month from the date of arrival and have a valid return ticket. The immigration officer at the port of entry may ask the passenger to produce any necessary documents (such as hotel reservation and proof of finance). There are two types of Visit Visa that can be used :

• Visit Visa on Arrival
  • This visa can be applied for if the nationality of the applicant(s) are included on the Visa on Arrival countries list.
  • Requirements :
    • A valid passport that is still valid for at least 6 (SIX) months from the date of request
    • Valid return tickets to and from the country
• Visit Visa
  • Foreigners can apply visit visa in Indonesian Embassy or Consulates, or the guarantor could apply to the Directorate General of Immigration in Jakarta, Indonesia
  • Visit Visa is issued in Indonesian Embassy or Consulates
  • Requirements :
    • A valid passport that is still valid for at least 6 (SIX) months from the date of request
    • Valid return tickets to and from the country
    • Letters of application and guarantee from the applicant(s) and guarantor(s)
    • A copy of valid bank accounts, living cost and spending plans while in Indonesia
    • ID photo in full color, dimensions of 4 x 6 cm

Visa Procedure :

• Applicant(s) submits visa application to local Indonesian Embassy/Consulates and pays the required amount (telex fee payment)
• Embassy/Consulates checks application for approval / forwards application to the Directorate General of Immigration for approval (for stateless/non-nationality persons).
•  If the requirements are satisfied and payments have been made, the visa should be issued within 3 business days.
•  Applicants proceed to Indonesia. Entry stamps will be obtained in the border or upon arrival.

For more info about visit visa information, you can click this link.