> For the complete documentation index, see [llms.txt](https://www.mica.wtf/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.mica.wtf/mica.wtf/mifid-ii/title-ii-authorisation-and-operating-conditions-for-investment-firms-art.-5-43/26.md). # Art. 26 — Provision of services through the medium of another investment firm Member States shall allow an [investment firm](https://headlesslaw.com/definitions/mifid-ii/investment-firm/) receiving an instruction to provide investment or ancillary services on behalf of a client through the medium of another investment firm to rely on client information transmitted by the latter investment firm. The investment firm which mediates the instructions will remain responsible for the completeness and accuracy of the information transmitted. The investment firm which receives an instruction to undertake services on behalf of a client in that way shall also be able to rely on any recommendations in respect of the service or transaction that have been provided to the client by another investment firm. The investment firm which mediates the instructions will remain responsible for the suitability for the client of the recommendations or advice provided. The investment firm which receives client instructions or orders through the medium of another investment firm shall remain responsible for concluding the service or transaction, based on any such information or recommendations, in accordance with the relevant provisions of this Title. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## 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, and the optional `goal` query parameter: ``` GET https://www.mica.wtf/mica.wtf/mifid-ii/title-ii-authorisation-and-operating-conditions-for-investment-firms-art.-5-43/26.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. 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.