Similar to what everyone else is saying below, a second reference field is important and it is already available on the sales invoice templates, why not replicate the same on the billing template?
I can also see it appears on the bills to pay, where both fields are currently populated by the invoice number.
Musa Malang
supported this idea
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Similar to what everyone else is saying below, a second reference field is important and it is already available on the sales invoice templates, why not replicate the same on the billing template?
I can also see it appears on the bills to pay, where both fields are currently populated by the invoice number.