Thanks Muhammad!

But isn't there a way to just format to the system's main decimal setting?

Hello Luc,

.replace() works only on strings, so first format/convert the value, then replace the decimal separator.

For example:

${"{:.2f}".format(object.your_value).replace(".", ",")}

or, if it is already calculated:

${"{:.2f}".format(your_variable).replace(".", ",")}

Here, :.2f is the second argument/format specification: it means “show the number with 2 decimals”.

Example:

12.5 → 12,50

So the issue is not the comma itself, but that the number must first be converted/formatted as a string before using .replace().

Odoo email templates allow dynamic placeholders and direct HTML/XML editing, so this kind of expression can be used in the template code. () Similar Odoo examples also use Python-style formatting such as "%.2f" % object.amount_total or "{:.2f}".format(value) for decimal display. ()