Pipeline Warnings
Pipeline warnings are generated when a pipeline component has determined that a user-related error has occurred. For example, if a user enters an invalid zip code, the pipeline runs and returns a value of 2, indicating that a warning should be displayed to the user. The site then enumerates the _Basket_Errors and _Purchase_Errors collections from the order form and displays them to the user. Then the page is rendered again with a message stating, "Please enter of correct ZIP/postal code."
Pipelines can return values of 1, 2, or 3. The following table describes the error levels.
| Return Value | Description |
| 1 | The pipeline executed successfully. |
| 2 | Warning message shown to user. |
| 3 | Critical failure, failed HRESULT. |
The _Basket_Errors and _Purchase_Errors collections contain lists of all the warnings accumulated in the pipeline. So, if numerous errors have accumulated in these collections the user is prompted to correct them all at the same time.
For more information about error handling in pipelines, see "Error Handling" or "Error Levels" in Commerce Server 2002 Help.
See Also
ASP Error Pages for Solution Sites
Development and Production Modes for Solution Sites
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