Send MyInvois e-invoices from WooCommerce

The e-Invoice for MyInvois LHDN plugin lets your WooCommerce customers request an official e-invoice for an order they paid through Bayarcash. It sends the e-invoice to LHDN MyInvois through Submit eInvoice. Use it if your business must issue e-invoices.

Before you start

You need the following:

• A WooCommerce shop that already takes payments with the Bayarcash WooCommerce plugin. The e-invoice plugin only works with Bayarcash payment methods.
• A Submit eInvoice account. Its API Secret Key is different from your Bayarcash keys. You do not need a Bayarcash token or portal key for this plugin.
• Your company details, including your Tax Identification Number (TIN) and MSIC code.

Install the plugin

The plugin is on WordPress.org as e-invoice-for-myinvois-lhdn. To install it:

1. In WordPress, go to Plugins and search for “e-Invoice for MyInvois LHDN”, or upload the plugin zip.
2. Click Activate.
3. Make sure WooCommerce and the Bayarcash WooCommerce plugin are also active.

Connect and set up your company

The setup is one page. Work down it from the top.

1. Go to MyInvois → Settings.
2. Under API Configuration, paste your key into API Secret Key. Use Go to Profile if you need to find it in your Submit eInvoice profile.
3. Click Save API Key, then Test Connection. A green Ready for E-Invoice Submission box means the connection works.
4. Fill in Company Information: company name, email, mobile number, identification scheme and number, TIN, MSIC Code, Business Activity Description and Default Product Classification Code. SST Registration Number and Tourism Tax Registration Number are only for businesses that have them.
5. Fill in Company Address.
6. Click Save Settings.

If a required field is empty, the page shows Missing Required Information and lists what is missing.

Tip

Beside TIN, the search button finds your TIN from your identification details. Fill in the API Secret Key and identification fields first.

Set product classification codes

Each product needs a classification code for MyInvois. To set it:

1. Open a product in WooCommerce and go to its E-Invoice section.
2. Leave Use Global Classification Code on to use your default code, or turn it off and choose a MyTax Classification Code for this product.

How your customer requests an e-invoice

After a paid order, the customer’s order details page shows E-Invoice Available with a Request E-Invoice button. They fill in their buyer details and identification, then submit. You can follow each one under MyInvois → Invoices, or in the E-Invoice Details box on the order, where Check Status refreshes the result.

Tips

• Tell customers about the 90-hour limit. MyTax rules give them 90 hours from the order date to request an e-invoice.
• Turn on Enable Logging only while fixing a problem. It records API requests, which helps support find the cause.

Common issues

The MyInvois settings page shows Plugin Dependencies Required. What do I do?

Install and activate both WooCommerce and the Bayarcash WooCommerce plugin, then open MyInvois → Settings again. The plugin does not work without them.

My customer says the e-invoice link has expired.

A customer can request an e-invoice only within 90 hours (3.75 days) of the order date. After that the order page shows E-Invoice Request Expired.

The Test Connection button fails. What should I check?

Check that you pasted the API Secret Key from your Submit eInvoice profile, not a Bayarcash key, and that all the required company fields are filled in.

Related articles

• Connect WooCommerce to Bayarcash
• Find your API keys and portal key
• Check a transaction and its status