# 1.5.1.2 藍新電子發票系統目前 Demo 站電子發票系統已經重新串接至藍新電子發票系統，可透過下列連結，至藍新電子發票系統測試後台，查詢電子發票開立狀況藍新電子發票系統測試站後台藍新電子發票系統正式站藍新電子發票系統使用問答 --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.asia-pos.com/lan-xin-dian-zi-fa-piao-xi-tong.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.