Google tag (gtag.js) parameter reference

The following table describes the parameters you can configure using the config command, set using the set command, or pass using the event command.

For more information on product-specific parameters, refer to the corresponding documentation:

Control parameters

ParameterValue typeExample valueDescription
groupsstring or array of strings'default,vendors'Used by the config command to assign a target to one or more groups.
send_tostring or array of strings'G-XXXXXX'Sets the target account/property that is to receive the event data.
event_callbackfunctionfunction() { form.submit(); }JavaScript callback function called when processing of an event command has completed.
event_timeoutinteger2000Timeout used for event_callback in milliseconds.