You need an ETA for New Zealand if you have an Indonesian passport
Visa options for New Zealand
Visitor visa
Travelers need a visa to visit New Zealand for Business and Tourism. Travelers who are Australian permanent residents, cruise ship passengers, or transiting through Auckland International Airport are eligible for an Electronic Travel Authorization. Travelers who do not meet these conditions require a paper or embassy visa. The visa is typically a stamp or sticker added to the passport. Travelers must obtain a visa from a local embassy, consulate or visa center before traveling. Visit the government website for details.
This is not offered by sherpa°.
Apply on the government site.