HSN code difference

This discussion addresses a user's concern about discrepancies between the HSN code approved during GST registration and the HSN code used for selling products on e-commerce platforms. The initial response suggests there shouldn't be a difference, perhaps only in the number of digits. The user clarifies that their registered HSN code is 3924, but a different one appears when selling. Further clarification is needed to resolve this issue and ensure correct GST return filing.