I'm trying use datatool to iterate over a CSV file in order to create an invoice.
This is what I have:
\documentclass[12pt]{letter}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{textcomp}
\usepackage[a4paper]{geometry}
\usepackage[british]{babel}
\usepackage{datatool}
\usepackage{invoice}
\DTLloaddb{jan}{jan.csv}
\begin{document}
\begin{letter} TEST
\opening{}
\begin{invoice}{\euro}{21}
\ProjectTitle{Rekening January}%
\DTLforeach*{jan}%
{%
\Date=date,%
\Price=price,%
\Quantity=quantity%
}%
{%
\Fee{\Date}{\Price}{\Quantity}%
}%
\end{invoice}
\end{letter}
\end{document}
When I compile, I get two "undefined control sequence" about the lines
}%
\end{invoice}
What I'm doing wrong?