For a custom field, I am trying to do a simple formula:

For the default value, I have the following:

{quantityavailable}+{quantityonorder}-{quantitybackordered}

But the field in the form shows, "ERROR: Field Not Found"

We have multiple locations, but we only use one/1.  I tried doing a simple script and the best I can muster is a "0" as follows:

function qtytoworkwith()
{

nlapiSetFieldValue('custitemqtytoworkwith',nlapiGetFieldValue('quantityonorder')+nlapiGetFieldValue('quantityavailable')-nlapiGetFieldValue('quantitybackordered'),true,true);

}

Any help or guidance would be much appreciated!

Pete