How do I configure the "ESTIMATE DISTANCE" action on ORDER RELEASE?

Summary:

I need to use the "ESTIMATE DISTANCE" action to calculate the distance between two locations when it doesn't exist or hasn't been calculated during scheduling.

The action requires five parameters:
Source location latitude
Source location longitude
Destination location latitude
Destination location longitude
Distance value (I don't know what to put in this variable)

Could you clarify this point?

I haven't found anything helpful in the documentation.

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25C

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