EWB System( www.ewaybillgst.gov.in ) is dependent on GST Common portal (www.gst.gov.in) for taxpayers registration details like legal name/trade name, business addresses, mobile number and e-mail id. EWB System will not allow taxpayer to update these details directly in the EWB portal. If taxpayer changes these details at GST Common portal, it will be updated in EWB system within a day automatically. Otherwise, the taxpayer can update the same instantaneously by selecting the option ‘Update My GSTIN’ in the e-Way bill system and the details will be fetched from the GST common portal (www.gst.gov.in) and updated in the e-Way bill system.