> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/mss-extensibility/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/mss-extensibility/mss-5.0/mss-extension-functions-mss-kalipso/entity-selection-in-kalipso.md).

# Entity selection in Kalipso

When MSS tries to select a customer, a prospect or a supplier will try to get it from the extension project.

Extension action set = EXT\_CLI\_SELECT

* Input Parameters:
  * inSelectedRoute – Code of the selected route;
  * inSelectedSubRoute – Code of the selected sub route;
  * inEntityType – Type of entity (C – Customer / P – Prospect / F - Supplier);
  * inDocumentType – Code of the selected document (used in the selection inside a document);
  * inEntityCodeToSelect – Code of pre-selected customer;
* Output parameters:
  * outEntityCode – Code of the selected entity (empty when no selection was made);
  * outEntityName – Name;