[ic] custom shipping problem

[interchange-users@interchange.redhat.com]

Quoting Scott Trunkhill (trunk@morris.com):
> I am having problems trying to get a custom shipping setup to work. I 
> have a catalog where items in one category have a fixed shipping 
> price and everything else is charged for shipping based on the total 
> price of the remaining items. I have written usertags to calculate 
> the number of items that should be charged per item and have been 
> able to get that charged correctly added for shipping as long as the 
> person also orders an item which is charged by price.
> 
> If the person only orders an item charged by price I get the following error.
> 
> No match found for mode 'formula', quantity '', returning 0.
> 
> Even though I know that the usertag tag is return the correct amount 
> of 0.00. Any idea why the quantity would be NULL?

It would appear that your UserTag is returning '' for some
reason. I would check the error log and see if it is generating
an error....

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