This Business Fund assistance from Facebook can be accessed by SMEs (Small and Medium Enterprises).
So it looks like for micro businesses, they cannot participate in the program yet.
Because when I filled out the submission proposal, there was a TDP (Tanda Daftar Perusahaan) column.
But I still tried to fill in with the micro business license that I had.
By only filling in the NIB (Business Identification Number) column and skipping the TDP column.
The online proposal can still be sent with this data.

This Business Fund Assistance Program from Facebook is a financial assistance of around 30 million for each business actor affected by Covid-19.
We only need to fill in our business data.

The conditions are:

• Is a business company
• Have between 2 and 50 employees as of January 1, 2020
• Has been in business for more than 1 year
• Has experienced challenges from COVID-19
• The business company is officially registered in Indonesia (has TDP or NIB)

Click here to start registration.

Here is some official information provided by Facebook regarding this assistance.

Update: Registration has been extended to cover all of Indonesia and extended until November 2, 2020.

Small businesses in Indonesia can submit their applications from October 6 – November 2, 2020.

In Indonesia, we are offering approximately IDR 12.5 billion in grants to around 400 eligible small businesses.
Each grant totaling IDR 31,017,300 is worth IDR 19,385,800 in cash and IDR 11,631,500 in optional advertising credits to help during this difficult time.
(All amounts are estimates only).
The grants are available to eligible small businesses registered in Indonesia.

Small businesses don’t need to have a previous Facebook presence to sign up.

Comment below for questions.
Good luck!