Introduction
Once you’ve issued an e-Invoice in Xero Malaysia, it must go through validation with the LHDN MyInvois portal.
Validation confirms that your invoice meets the format, data, and compliance standards required by LHDN before it’s officially recognized as a valid tax document.
This guide explains how validation works through Invoici (the Xero-MyInvois integration), how to interpret invoice statuses, and what to do if validation fails.
6 Steps to Understand everything about validating an E-Invoice using Xero Malaysia
Step 1: Issue and Submit the E-Invoice
Create your invoice in Xero as usual.
Make sure all mandatory fields are complete:
Supplier and buyer TIN/BRN in respective Contact
MyInvois classification code
Invoice Number, Invoice date and currency
Click Approve.
Email the invoice to myinvois@invoi.ci, where the invoice will be sent to LHDN for validation through Invoici.
💡 Tip: Ensure your company is already integrated with MyInvois. If not, follow our setup guide: How to Set Up Integration of Xero and LHDN (through Invoici).
Step 2: Understand Validation Statuses
After submission, each invoice in Xero will display a validation status showing its progress:
Status | Meaning | What You Should Do |
✅ Validated / Approved | Invoice accepted by LHDN. | No further action needed. The validated copy is stored under Files → LHDN Validated E-Invoices. |
⏳ Pending | Submitted but not yet processed by LHDN. | Wait a few minutes; refresh the invoice page later. |
❌ Rejected | Validation failed due to errors (e.g., missing TIN, wrong code). | Check the error details, fix the invoice, and resubmit. |
Step 3: Review Validation Details in Xero
To view validation details:
Open the specific invoice in Xero.
Scroll to the bottom and check History and Notes — you’ll see the submission and response log from MyInvois.
If rejected, note the error message (e.g., “Invalid buyer TIN” or “Classification code missing”).
This information helps you identify exactly what needs to be corrected before resubmitting.
Step 4: Fix Common Validation Errors
If your e-Invoice is rejected, here are the most common reasons and solutions:
Issue | Cause | Solution |
Missing or invalid TIN/BRN | Customer record not updated. | Edit contact details in Xero with correct TIN/BRN. |
Incorrect MyInvois classification code | MyInvois classification code is not mapped in invoice line item. | Assign the proper code in your line item in invoice. |
Duplicate invoice number | Same invoice number submitted twice. |
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Step 5: Access the Validated E-Invoice Copy
Once LHDN approves your e-Invoice:
The validated version (with QR code and validation URL) is automatically saved in Xero in specific transaction.
You may also attach this validated document when sending invoices to customers.
Step 6: Track Validation Performance (Optional)
For businesses handling multiple invoices daily, consider:
Creating a tracking category in Xero (e.g., “Invoice Validation Status”).
Generating reports to monitor validation turnaround time and rejection rates.
This helps identify recurring issues and improve your internal processes.
Best Practices for E-Invoice Validation in Malaysia
Always verify your TIN/BRN details before submitting.
Ensure each line item has a valid MyInvois classification code.
Submit invoices in real time to avoid backlogs near compliance deadlines.
Regularly check for updates from LHDN or MyInvois on new validation rules.
Keep validated copies safely for audit and tax submission purposes.
Frequently Asked Questions (FAQs) about How to Validate an E-Invoice using Xero Malaysia
Q1: How long does validation take?
Usually within a few minutes. During high traffic (e.g., month-end), it may take longer for LHDN to process.
Q2: Can I issue an e-Invoice without validation?
No. Every e-Invoice must be validated by LHDN to be considered legally accepted.
Q3: What happens if I edit an already validated invoice?
Any changes require you to cancel and reissue a new e-Invoice — edits cannot be made after validation.
Q4: How do I know my invoice was validated successfully?
You’ll see a “Validated / Approved” status in Xero, and a copy will appear under Files → LHDN Validated E-Invoices.
Q5: What should I do if the validation keeps failing?
Check for missing or wrong TIN, classification code, or format. If the issue persists, contact Invoici Support or your Xero advisor for technical review.