It is possible to issue invoices for the following two items on pixiv Sketch LIVE.
1) Shoutout costs
2) Reward transfer fees
The procedure for issuing invoices is different depending on the type of invoice you would like to issue, so please check the pages below to learn more.
- Shoutouts: https://sketch.pixiv.help/hc/en-us/articles/23343968565273
- Reward transfer fees: https://sketch.pixiv.help/hc/en-us/articles/23344214571929