> For the complete documentation index, see [llms.txt](https://docs.a1erp.digiwin.com/a1faq/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.a1erp.digiwin.com/a1faq/12.-gong-yong-she-ding.md).

# 12.公用設定

- [12.001要如何設定小數點？](https://docs.a1erp.digiwin.com/a1faq/12.-gong-yong-she-ding/001-question.md)
- [12.002使用者要如何新增？](https://docs.a1erp.digiwin.com/a1faq/12.-gong-yong-she-ding/002-question.md)
- [12.003如何設定使用者權限？](https://docs.a1erp.digiwin.com/a1faq/12.-gong-yong-she-ding/003-question.md)
- [13.電子發票模組](https://docs.a1erp.digiwin.com/a1faq/12.-gong-yong-she-ding/13.-zi-piao-mo.md): 需搭配進銷存模組使用
- [13.000電子發票申請方式](https://docs.a1erp.digiwin.com/a1faq/12.-gong-yong-she-ding/13.000-dian-zi-fa-piao-shen-qing-fang-shi.md): 想在A1開立電子發票，需要哪些流程和費用呢？
- [13.001 作廢發票的處理？](https://docs.a1erp.digiwin.com/a1faq/12.-gong-yong-she-ding/13.001-zuo-piao-de-li.md): 開立電子發票後，作廢的發票還要請客戶寄回嗎？
- [13.002如何上傳發票？](https://docs.a1erp.digiwin.com/a1faq/12.-gong-yong-she-ding/13.002-ru-he-shang-piao.md): A1進銷存模組+電子發票模組，解決許多人為了開發票，要另外再整理一份Excel，或還要再到加值中心重建立一次銷貨資訊問題！節省寶貴的時間，人力的成本~
- [13.003如何列印發票？](https://docs.a1erp.digiwin.com/a1faq/12.-gong-yong-she-ding/13.004-ru-he-lie-yin-piao.md): 發票格式提供B2B為A4大小紙張列印，B2C為5.7吋紙張列印
- [13.004先申請工商憑證就要開發票嗎？](https://docs.a1erp.digiwin.com/a1faq/12.-gong-yong-she-ding/13.004-xian-shen-gong-shang-jiu-yao-piao.md): 工商憑證卡片從申請至核發約需14天，拿到卡片不代表就要馬上開立發票，故若貴司未來有電子發票需求，可提前先申請喲！