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Callouts are places in VC/m at which custom code can be executed. There are a variety of places in the VC/m environment where callouts can be specified.

General Procedure

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For each callout, your custom code should consist of a subroutine that takes the parameters that are specific to that callout. You should name the routine according to our routine naming conventions. You then need to declare the details of the callout at the relevant part of the VC/m user interface. The details for each callout are detailed in the articles listed above.

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See Also: Routine Naming Conventions