(1) Yes can't convert voa . (2) Have to come on b211 .. now to convert to itas.
Update of the above :
(1) Now you can convert : VOA > 60 days "Bridge" Stay Permit > ITAS
(2) Immigration changed (probably all) the visa codes and a few visas , and created many new visas .
The old "Sosial Budaya/Social Cultural" Visit Visa which we used in the past was one that changed . To cover its many purposes , many new (more specific) visas were created (like : 'Social/Humanitarian/Volunteering' Visit Visa , Music Performer Visit Visa , Student Visit Visa , Short Course Visit Visa , ...)
Similarly to what we did with the old sponsored Social Cultural Visit Visa , I understand that foreigners married to Indonesians now could get the non-sponsored 60 days Tourist Visa and later convert it into an ITAS sponsored by the Indonesian spouse (see references below) .
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From
https://evisa.imigrasi.go.id/web/visa-selection (site for online visa selection/request) :
C1 Tourist Vist Visa , 60 days , extendable
......
4. With this visa you can
a. Conducting activities related to tourism, visiting friends or family, and transit
b. ...
6. Other information :
a. You can extend this visa or convert it into another visa or stay permit.
......
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PerMen no.22 Year 2023 - free translation
Article 163
(1) Change of status of Visit Stay Permit to Temporary Residence Permit/ITAS may be granted to foreigners holding Visit Stay Permit.
(2) Change of status as referred to in paragraph (1), is excepted for:
a. holders of Visit Stay Permit originating from Visit Visa on arrival/VOA;
b. holders of Visit Stay Permit originating from Visa-free; or
c. crew of airplane/ship.
Article 164
Change of status of Visit Stay Permit to Temporary Residence Permit/ITAS may be granted to foreigners to do :
.......
g. family reunification;
.......
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https://www.expatindo.org/community/threads/bridge-stay-permit.7753/ (about Bridge Stay Permit)