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Oriel SupportOriel Support 

customize sales invoice

Can anyone give me the steps and initial VF page(s) and required Apex classes for the stock Sales Invoice?  I would like to create some customizations for a client and would rather not start from scratch.  I know it exists, I am just having trouble getting it in.  I have a copy from v13 of the VF page, but I get an error attempting to save it.

Error: Unknown property 'c2g.DocumentsPrintService.TaxSummary.TaxCode'

There does not appear to be any extensions referenced in the VF page so I am at a loss at to why it is looking for this.  

Any suggestions/tips would be greatly appreciated.