UQC or unit of measure is required to be shown in the HSN Summary of GSTR – 1 in table 12 and in table 13 of the GSTR – 2. The unit of measure in case of items/goods should be based on the UQC issued by the GSTN. If they do not match it will show error message and the return cannot be filed
Advances paid for supplies falling under Reverse Charge are to be shown in Table 12 of GSTR – 2. For each and every advance being uploaded here, a unique identification number will be generated by the GSTN for the advances paid for supplies falling under reverse charge where invoice is not received.