Tax Invoice and E-way Bill date time gap of 1 week or a month

This discussion addresses a common query regarding the date discrepancy between a Tax Invoice and an E-way Bill. The user issued a Tax Invoice with GST charged in advance for client payment, but the goods haven't shipped yet. The core question is whether an E-way Bill can be generated later for the same invoice without complications. The advice given suggests that for advance payments, a proforma invoice is generally recommended over a tax invoice, but generating an E-way Bill later is permissible.