Copy the complete error code and message before changing anything, then match that code with the current error reference for the Invoice Registration Portal (IRP) you use. The code determines whether you should correct GSTIN ownership, verify an IRN, stop a duplicate submission, investigate a date restriction, or repair the payload generated by your accounting system. Do not repeatedly submit the same invoice JSON or spreadsheet without first identifying the failure type.
What an IRP rejection means
An IRP rejection means the portal did not complete registration for that submission. A successful report returns a digitally signed e-invoice containing a unique Invoice Reference Number (IRN) and QR code. That successful data is transmitted to the GST system. A failed request before registration is therefore different from finding an error after an IRN has already been issued.
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IRIS IRP describes its service in its FAQ as: “IRP is only a pass-through validation portal validating key fields.” In practice, the portal checks required identity, document, tax and timing fields against its current rules. The exact error text is more useful than a generic list of common causes. A GSTIN ownership mismatch, unavailable IRN and duplicate request can look similar to a user who sees only “failed,” but each requires a different response.
First response: capture the evidence
Before correcting the invoice, save the following information from the failed attempt:
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- The full numeric error code and message, including punctuation.
- The portal and submission route: web form, JSON upload, Excel utility, direct API or a GSP-connected API.
- The seller GSTIN, the GSTIN under which the user was logged in, document type, document number and document date.
- The exact payload or spreadsheet file sent, if your system allows you to export it.
- The submission timestamp, request identifier and any acknowledgment number.
- Whether an earlier attempt returned an IRN, even if the screen later displayed an error.
- The user, service account or integration job that sent the request, where several people or systems share the same taxpayer account.
Keep the original invoice facts intact while investigating. Changing a date, amount or tax value merely to make validation pass can create a GST and accounting mismatch. Make a working copy for testing, but retain the rejected file so you can show exactly what the IRP received.
Match the error code before changing data
The current IRP error index should be your authority for the precise remedy. The following examples illustrate why different codes require different actions; they are not a complete error catalogue.
| Code | What the IRP indicates | Correct next action |
|---|---|---|
| 2143 | The invoice or IRN does not belong to the GSTIN of the currently logged-in user. | Check the login account, seller GSTIN and ownership of the document. Do not attempt cancellation, retrieval or other actions under an unrelated GSTIN. |
| 2148 | Requested IRN data is unavailable. | Verify every character of the IRN, confirm that the request is being made against the correct GSTIN, and check whether the operation is still within its permitted time window. |
| 2150 | Duplicate IRN or a repeated registration request. | Stop simultaneous retries. Check whether an earlier request succeeded, retrieve the returned IRN if available, and update the local invoice record so the system does not submit it again. |
If the message names another code, use that code’s current explanation and prescribed resolution rather than applying one of the examples above. A duplicate response can be produced by a timeout after the portal has already accepted the first request, so check acknowledgments and IRN status before creating a new document number or changing invoice facts.
Check GSTIN ownership and login context
When the GSTIN does not match
An ownership mismatch usually means the user session, API credentials or document seller GSTIN are inconsistent. Confirm that the logged-in taxpayer is the supplier named in the payload and that an intermediary or branch has not selected the wrong GSTIN. For API submissions, inspect the credential-to-GSTIN mapping in the integration configuration, not just the invoice screen.
For a manual upload, compare the GSTIN displayed in the portal header with the seller GSTIN in the spreadsheet or JSON. For an API or GSP route, check the taxpayer identifier attached at authentication, the seller GSTIN field in the payload and any mapping table that translates an internal company or branch code into a GSTIN. A correct invoice number cannot overcome an incorrect ownership context.
When an IRN cannot be found
For an unavailable IRN response, copy the IRN directly from the original acknowledgment instead of retyping it. Check that the request uses the same GSTIN context and that the requested operation is allowed at that time. If your ERP shows “pending” while the portal shows no result, preserve the request log and ask the software or IRP support team to reconcile the status rather than generating another invoice number.
Do not assume that an unavailable result proves that no IRN exists. A network interruption, delayed response or query made under another GSTIN can produce the same practical symptom. First search the acknowledgment, local transaction log and portal history available to the authorized user. Only after status is reconciled should the transaction be marked for a new submission.
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Check the 30-day reporting restriction
IRIS IRP release information states that, effective 1 April 2025, a taxpayer with aggregate annual turnover (AATO) of ₹10 crore or more must report covered invoices, credit notes and debit notes within 30 days of the invoice date. Reporting after that limit is restricted and may prevent IRN generation.
When an error points to this time window:
- Confirm the taxpayer’s applicable AATO and whether the entity falls within the rule.
- Compare the document date with the date and time of the IRP submission.
- Check whether the document is an invoice, credit note or debit note covered by the requirement.
- Confirm that the document belongs to the taxpayer and GSTIN being checked; a date calculation under the wrong entity can mislead the investigation.
- Escalate the compliance treatment to your GST adviser or internal tax team if the period has expired.
Do not alter the invoice date solely to bypass the restriction. The document date must reflect the underlying transaction and your records must remain consistent. The 30-day condition has a stated effective date and turnover threshold; it should not be applied automatically to every taxpayer or every historical document without checking the current official rule.
Understand the limited RSP validation relaxation from 1 February 2026
A dated IRIS IRP production release describes a narrow change for documents dated on or after 1 February 2026. It applies when at least one line-item HSN is notified for retail-sale-price (RSP)-based calculation. For qualifying RSP-based invoices, the release suppresses three validation errors:
- 2194: total item value mismatch.
- 2234: CGST/SGST amount mismatch.
- 2235: IGST amount mismatch.
This is a conditional relaxation, not a general waiver of invoice-value or tax checks. It does not automatically apply to invoices without a qualifying notified HSN, to other document dates, or to unrelated validation codes. Confirm the HSN, RSP applicability and document date in the current release guidance before relying on it.
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Fix payload and source-system validation errors
Compare the generated payload, not just the screen
If the invoice appears correct in your ERP but the IRP rejects it, export the exact JSON or spreadsheet row that was sent. Compare GSTINs, document type, document number, date, taxable value, tax rates, tax amounts, totals, place of supply, item HSNs and unit details with the current schema and validation rules. A display rounded to two decimals can conceal a payload carrying more precision or a stale tax calculation.
Also compare the document number and type character by character, including prefixes, separators and leading zeroes. Check that credit notes and debit notes are identified as the correct document type, that the date is in the format expected by the current schema, and that line totals reconcile with the header totals after the system’s rounding method is applied. Verify that the tax component matches the place-of-supply treatment shown in the source record. These checks explain what to inspect; the exact permitted values and field requirements remain those published for the IRP route being used.
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Correct the source record once
Make the correction in the originating accounting or ERP record, regenerate the payload, and retain a copy of both the rejected and corrected versions. Avoid editing only the outbound file if the source record will later regenerate the original error. If the same validation failure persists after the source data is demonstrably correct, involve the software provider or integration developer.
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Prevent duplicate submissions
Design the integration so each invoice has an idempotent status: pending, accepted with IRN, rejected, or requires reconciliation. On a timeout, query status before retrying. When an IRN is returned, write it, the acknowledgment number and timestamp back to the local record immediately. This prevents multiple workers or users from firing the same registration request at once, the situation addressed by duplicate-IRN error 2150.
Where batch processing is used, isolate the failed row instead of resubmitting the whole file blindly. Mark a row as accepted only when the response containing the IRN is stored. Mark it as rejected only when the response is definitive. A “requires reconciliation” state is safer after a timeout because it prevents both accidental duplicate registration and premature creation of a replacement invoice.
What to do when an IRN already exists
An invoice with a generated IRN cannot simply be edited on the IRP. The IRIS IRP FAQ states that an e-invoice cannot be amended after IRN generation. If the content is wrong, the permitted route is generally to cancel the e-invoice within the applicable cancellation period and report a corrected document, subject to current GST rules and your accounting treatment.
Separate three situations: a submission rejected before registration, a submission accepted and returned with an IRN, and a timeout where the final status is unknown. Only the first is an ordinary pre-registration correction. The second requires the cancellation and correction process allowed at that time. The third requires reconciliation before any new submission.
If the cancellation period has passed, do not promise a portal edit or create a second invoice to overwrite the first. Obtain current GST guidance on the available correction, disclosure and bookkeeping treatment. Preserve the signed e-invoice and QR code, the original payload, the error or discovery record and all subsequent acknowledgments. Ensure the accounting ledger, customer copy and GST records are consistent with whatever permitted treatment is chosen.
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Choose a reporting route that fits your workflow
The official FAQ recognizes government-provided tools and private accounting or ERP software. It also identifies three reporting paths. The portal does not publish comparative performance rankings, so select a route based on volume, integration and control needs.
| Route | Best fit | Operational considerations |
|---|---|---|
| Offline bulk upload | Teams preparing batches without a real-time integration. | Validate the spreadsheet or bulk file before upload; reconcile every row with its acknowledgment and IRN. A controlled file-naming and row-status process helps prevent a corrected row from being uploaded together with its rejected predecessor. |
| Direct API | Organizations with an in-house system and developers who can maintain authentication, schema and status handling. | Implement logging, retries with status checks, idempotency and alerts for schema changes. Keep the raw request and response associated with the internal invoice key. |
| API through a GSP | Businesses that want an integration layer between their ERP and the IRP. | Identify whether an error originated in the ERP, the GSP transformation or the IRP, and retain request and response logs from each layer. Confirm how the GSP reports timeouts, duplicate responses and returned IRNs. |
Government-provided tools may suit taxpayers who need a standard preparation route, while private accounting or ERP tools can reduce manual entry for recurring invoices. Neither option removes the need to monitor current IRP rules. If recurring rejects originate in software-generated payloads, ask the provider for schema-version support, field-level logs and a method to reconcile accepted IRNs after network failures.
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When comparing routes, consider invoice volume, whether an existing accounting system must remain the system of record, how much control the team needs over generated JSON, and where support can inspect the failure. There is no official ranking that makes one route universally better. The practical objective is a single controlled flow from source record to response storage.
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Contact your ERP, GSP or IRP support channel when the corrected source record still fails, the portal and local status disagree, or an ownership or timing rule is unclear. Include:
- Error code and verbatim message.
- GSTIN context and user or API route, without exposing passwords or tokens.
- Document type, number, date, invoice value and relevant HSN information.
- Submission timestamp, request identifier, acknowledgment number and IRN, if any.
- The rejected payload or spreadsheet row and the corrected version.
- Logs showing whether the request was sent once, retried, timed out or processed concurrently.
- The current software, integration or schema version where the support team requires it.
The IRP portal provides an issue-reporting route; use the current portal link and its required fields. Redact credentials and unrelated customer data before sending files. Describe the exact action you want support to confirm—for example, whether an IRN exists, whether a GSTIN context is valid, or which field triggered the code—rather than asking only why the invoice failed.
Quick decision checklist
- Copy the complete code and message.
- Check whether an IRN or acknowledgment already exists.
- Verify the login GSTIN, seller GSTIN and document ownership.
- For an unavailable IRN, verify the identifier and permitted operation window.
- For a duplicate response, stop parallel retries and reconcile status.
- For date errors, check the 30-day rule for AATO of ₹10 crore or more from 1 April 2025.
- For errors 2194, 2234 or 2235, test whether the document qualifies for the RSP-based relaxation for dates on or after 1 February 2026.
- Compare the actual outbound payload with the current schema.
- Correct the source record, regenerate once and record the result.
- If an IRN already exists, follow current cancellation and correction rules instead of editing it.
- Store the final response, signed invoice and QR code with the accounting record.
Frequently Asked Questions
Why was my e-invoice rejected by the IRP?
The reason depends on the exact code and message. Common distinct cases include a GSTIN ownership mismatch (such as code 2143), unavailable IRN data (2148), a duplicate or repeated request (2150), a reporting-date restriction, or a validation failure in the generated payload. Copy the full response and use the current error-specific resolution.
How do I fix an IRP error code?
Record the code, message, portal route, GSTIN context, document date and whether an acknowledgment or IRN exists. Then follow the current IRP entry for that code. Do not apply a duplicate-submission remedy to an ownership error or change invoice facts simply to bypass a validation.
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Why can’t I generate an IRN after the invoice date?
For taxpayers with AATO of ₹10 crore or more, IRIS IRP release information states that invoices, credit notes and debit notes must be reported within 30 days of the invoice date from 1 April 2025. Confirm that the rule applies to the taxpayer and document, and obtain GST advice if the period has expired. Do not alter the genuine invoice date.
What does IRP error 2143 mean?
It indicates that the invoice or IRN does not belong to the GSTIN of the currently logged-in user. Check the login account, seller GSTIN, API credential mapping and document ownership before trying retrieval, cancellation or another action.
What should I do for IRP error 2148?
Requested IRN data is unavailable. Verify every character of the IRN, use the correct GSTIN context and confirm that the requested operation is still permitted. If your ERP and portal disagree, preserve logs and reconcile the status with support instead of creating another invoice immediately.
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Stop simultaneous retries and check whether the first request succeeded, especially after a timeout. Retrieve the returned IRN or acknowledgment when available and update the local invoice record. Add idempotent status handling so multiple workers cannot submit the same invoice concurrently.
Can I edit an e-invoice after IRN generation?
No. The IRIS IRP FAQ says an e-invoice cannot be amended after IRN generation. If the content is wrong, cancellation within the applicable period and reporting a corrected document may be available under current GST rules. If that period has passed, obtain current professional guidance rather than editing the IRP record or creating a replacement to overwrite it.
Do errors 2194, 2234 and 2235 always get ignored?
No. A production release describes a limited relaxation from 1 February 2026 for documents dated on or after that date when at least one line-item HSN is notified for RSP-based calculation. It suppresses 2194, 2234 and 2235 only for qualifying RSP-based invoices. It is not a blanket waiver for other invoices or codes.
Which tool or route should I use to prevent repeated payload errors?
The official FAQ recognizes government tools, private accounting or ERP software, offline bulk upload, direct API and API through a GSP. Choose based on invoice volume, integration needs, payload control and support access. Whichever route you use, retain request and response logs, check status after timeouts and write returned IRNs back to the source record.
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Start with the exact IRP code, not a guess. Confirm GSTIN ownership and IRN status, apply the dated 30-day and RSP conditions only when their thresholds and dates fit, and compare the actual outbound payload with the current schema. Reconcile timeouts before retrying, correct the originating record once, and never edit an already-issued IRN. Keep the signed invoice, QR code, acknowledgments and support logs together so the final GST and accounting treatment can be demonstrated.
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