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# Preparation for replay overview

After you create a script with Web Service calls, you prepare it for replay.

You can enhance it with custom error and log messages or with transactions. In addition, you can enhance your script with JMS functions, jms_<suffix> or XML functions, lr_xml_<suffix>. For more information, see the Function Reference.

Runtime settings let you emulate real users more accurately, configure the runtime settings. These settings include general settings and Web Service specific settings. For details, see Runtime settings.

In certain cases, you may need to use the result of one Web Service call as input for another. To do this, you save the result to a parameter and reference it later.

### Snapshots

Vuser scripts based on the Web Services protocol utilize VuGen's Snapshot pane.

The Snapshot pane (select View > Snapshot) enables you to view snapshots of Web Service calls. When you display the Snapshot pane for a Web Services script, the left side of the Snapshot pane displays a tree view of the snapshot data; the right side of the Snapshot pane displays a text view of the snapshot data.

For details, see Snapshot pane and Snapshots with XML view.

## See also

- Prepare scripts for replay

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