# Outgoing transfer With the **Outgoing transfer** trigger, the workflow process starts when the download of a file from a VFS to its final destination is completed. This trigger works both when Data Mover operates as a client or as a server. Refer to the [Data Mover client and server roles](/data-mover-1.21/transfer-protocols-and-connectors/data-mover-client-and-server-roles.md) page for details. For example, when a partner acts as a client to a Data One server and downloads a file from a specific virtual path, any actions associated with an **Outgoing transfer** workflow configured on that virtual path are executed. The **Outgoing transfer** trigger requires a virtual path. **Execution Variable** When executed, this trigger adds an execution variable named `file`, of type `FileDetail`. Its attributes are set based on the information sent from the event that initiated the trigger. --- # 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.primeur.com/data-mover-1.21/workflow-templates/triggers/outgoing-transfer.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.