Using Web Services for GP I'm adding a SalesLineTax to my SalesInvoiceLine in the following way:
SalesLineTax salesLineTax = new SalesLineTax();
salesLineTax.IsTaxableTax = isTaxable;
SalesLineTax[] salesLineTaxes = { salesLineTax };
salesInvoiceLine.Taxes = salesLineTaxes;
However when saving the Invoice I'm getting the following error message: "SQL Server Exception: Operation expects a parameter which was not supplied."
Which parameter of the SalesLineTax object is compulsory? Thanks in advance
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