E-Way Bill errors and fixes

Find your error and the fix that resolves it.

✔ Fact-checkedBy EWayBill.org Editorial TeamLast updated: 29 June 2026

Browse by symptom — login and OTP issues, validation errors, portal availability, and integration errors.

E-Way Bill OTP Not ReceivedNetwork delay, wrong registered mobile, or a full SMS inbox usually cause OTP fa E-Way Bill Captcha Not WorkingCase-sensitivity, an expired captcha, or browser cache issues are the usual reas E-Way Bill Portal Not OpeningServer maintenance, DNS issues, or browser problems prevent the portal from load E-Way Bill Server ErrorHigh load on NIC servers or a temporary glitch typically triggers a server error E-Way Bill Session ExpiredInactivity timeout or multiple open tabs cause the session-expired message.E-Way Bill Account BlockedRepeated wrong passwords or non-filing of returns can block the account.E-Way Bill Username LockedSeveral incorrect login attempts temporarily lock the username for security.E-Way Bill Password Not WorkingA recently changed password, caps lock, or an expired password causes login fail E-Way Bill Duplicate Invoice ErrorAn E-Way Bill already exists for that invoice number and document date.E-Way Bill Invalid GSTIN ErrorA wrong, inactive or wrongly-typed GSTIN triggers the invalid-GSTIN message.E-Way Bill Invalid Vehicle Number ErrorThe vehicle number must follow the RTO format the portal accepts.E-Way Bill Distance Validation ErrorEntered distance is outside the allowed range from the auto-calculated PIN-to-PI E-Way Bill HSN Code ErrorWrong digit count or an unrecognised HSN code triggers this error.E-Way Bill Transporter ID ErrorA wrong or unregistered 15-character Transporter ID (TRANSIN) causes this error.E-Way Bill JSON Upload FailedSchema mismatches or invalid values cause the bulk JSON to be rejected.E-Way Bill API Authentication ErrorWrong API credentials, an expired token, or unwhitelisted IP cause auth failures Tally E-Way Bill Invalid Login CredentialsTally connects with the portal's API user — not your web login — so wrong API se E-Way Bill Already Generated ErrorThe portal blocks a second bill on the same invoice number to prevent duplicates E-Way Bill PIN Code ErrorA non-existent or mismatched PIN code for the state stops bill generation.E-Way Bill Browser Compatibility IssueOutdated browsers or blocked scripts break portal features.E-Way Bill 'Contact Admin' ErrorA backend permission or account-state issue shows this generic admin message.Is the E-Way Bill Portal Down Today?Maintenance windows and peak-load spikes are the common reasons the portal is un

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Sources & references