> For the complete documentation index, see [llms.txt](https://docs.intrepidcs.com/vspy-3-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.intrepidcs.com/vspy-3-documentation/3.9.15/vehicle-spy-main-menus/main-menu-measurement/vehiclescape-daq/vehiclescape-daq-standalone-logging-tab/standalone-logging-collections-and-methods/message-capture-method-stop-options/message-capture-method-stop-options-finish-after-collecting-messages-or-when-expression-is-true.md).

# Message Capture Method: Stop Options: Finish After Collecting Messages or When Expression is True

When using the [Message Capture](/vspy-3-documentation/3.9.15/vehicle-spy-main-menus/main-menu-measurement/vehiclescape-daq/vehiclescape-daq-standalone-logging-tab/standalone-logging-collections-and-methods/collections-and-methods-message-capture-method.md) method for [Standalone Logging](/vspy-3-documentation/3.9.15/vehicle-spy-main-menus/main-menu-measurement/vehiclescape-daq/vehiclescape-daq-standalone-logging-tab.md) within [VehicleScape DAQ](/vspy-3-documentation/3.9.15/vehicle-spy-main-menus/main-menu-measurement/vehiclescape-daq.md), selecting **Start immediately** or **Start when expression is true** for the [Start Option](/vspy-3-documentation/3.9.15/vehicle-spy-main-menus/main-menu-measurement/vehiclescape-daq/vehiclescape-daq-standalone-logging-tab/standalone-logging-collections-and-methods/collections-and-methods-message-capture-method/message-capture-method-start-options.md) causes the [Stop Options](/vspy-3-documentation/3.9.15/vehicle-spy-main-menus/main-menu-measurement/vehiclescape-daq/vehiclescape-daq-standalone-logging-tab/standalone-logging-collections-and-methods/message-capture-method-stop-options.md) to consist of two choices, as shown in Figure 1:

* **Finish after collecting # messages:** Stop logging when the specified number of messages has been collected after the [Start](/vspy-3-documentation/3.9.15/vehicle-spy-main-menus/main-menu-measurement/vehiclescape-daq/vehiclescape-daq-standalone-logging-tab/standalone-logging-collections-and-methods/collections-and-methods-message-capture-method/message-capture-method-start-options.md) trigger.
* **Finish when expression is true:** Stop logging when the selected expression is true; use the ![](https://cdn.intrepidcs.net/support/VehicleSpy/assets/Functionbutton.gif) button to build the expression using the [Expression Editor](/vspy-3-documentation/3.9.15/shared-features-in-vehicle-spy/shared-features-expression-builder.md).

![Figure 1: The Finish after collecting # messages / Finish when expression is true Stop Options.](https://2396693198-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FlRJv2XDCMeZSU0VbeZlG%2Fuploads%2Fgit-blob-52d129e3e9811817669d4d08eb109553a1ee4359%2Fspyvssalcollectconfigfinishmsgsexpr.gif?alt=media)


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