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When a WEBEVENT form is shown in the browser, it will also contain the STDANCHOR unique identifier. You can then navigate to a WAM using the HandleWAMEvent() JavaScript function as described in 6. WAM and WEBEVENT Interoperability.

HandleWAMEvent() automatically looks for the STDANCHOR field in the form and submits its value as well.

On the WAM side, the STDANCHOR field needs to be placed on the WEB_MAP to ensure it is mapped into the WebRoutine. When the target WebRoutine is executed, it will receive the STDANCHOR identifier value and any other field values passed via HandleWAMEvent() and mapped into the WebRoutine on the WEB_MAP. In the WebRoutine, the shopping cart list can then be retrieved from the database table using the STDANCHOR key. The values can then be placed into a WAM list that belongs to WAM Session state and the data keyed by STDANCHOR deleted from the database. Alternatively, a special cleanup job can be scheduled to run to clean up stale data from the database.

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