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E-Invoicing for Malaysia & UAE

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Upstream Oil & Gas · Oracle Cloud ERP

LHDN Compliance for an Offshore Oil & Gas Operator-In Three Weeks

An upstream operator running production assets in Peninsular Malaysia needed AP and AR invoices to reach LHDN without anyone in finance learning a new tool. Here’s how it happened.

500

Invoices / month

AP + AR

Full coverage

<3 wks

Time to go-live

0

Rejections on day one

The Client

High-Value Invoices with SST Complexity and No Room for Error

The company operates offshore production assets in Peninsular Malaysia. Around 500 invoices move through their Oracle Cloud ERP every month: vendor payments for marine logistics, maintenance contracts, and fuel procurement on the AP side; customer invoices for crude and condensate sales on the AR side.

Volume isn't the challenge here value is. These aren't high-frequency, low-stakes transactions. Each invoice can carry significant SST implications, and every line item needs to be exactly right before it reaches LHDN. A tax mismatch at this level isn't just a compliance headache it's a material audit risk.

The finance director put it plainly: they needed the mandate covered without disrupting the AP and AR workflows that already worked. No new portals. No parallel systems. No change management exercise with the finance team.

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The Challenge

Four Things That Had to Be True at Once

LHDN e-invoicing is technically achievable. But making it invisible to the people who process invoices every day that's the harder problem.

01

Both AP and AR had to be covered

The mandate applies to what they pay suppliers and what they bill customers. Not one or the other both directions had to flow through MyInvois from day one.

02

Everything had to start and end in Oracle Cloud

No CSV exports. No logging into a separate LHDN portal. No manual copy-paste between systems. If it wasn’t native to their existing ERP workflow, it wasn’t going to get used consistently.

03

SST had to respect Oracle Cloud's existing tax logic

The company’s tax configuration – standard-rated, zero-rated, exempt – already lived in Oracle Cloud. Any e-invoicing layer had to read that configuration, not create a competing one.

04

Go-live had to happen before the mandate deadline

The LHDN threshold had already been hit. A multi-month implementation was not on the table. They needed to be live and compliant within weeks.
What We Did

B-Invoice Sits on Top of Oracle Cloud and Stays Out of the Way

The product doesn’t replace anything in Oracle Cloud. It reads from the tables that already exist, transforms the invoice data into what LHDN wants, handles the submission, and writes the result back. The AP and AR teams don’t interact with B Invoice. They never see it.

AP e-invoicing

When a supplier invoice is posted in Oracle Cloud AP, B Invoice picks it up automatically, validates the fields, and submits to MyInvois via API. No manual trigger required.

AR e-invoicing

Customer invoices for crude and condensate sales flow from Oracle Cloud AR through B Invoice  formatted to LHDN spec, digitally signed, and submitted without anyone exporting a file.

SST tax alignment

B Invoice reads the tax codes already configured in Oracle Cloud. It doesn’t recalculate or override it uses the same tax logic the finance team has always relied on.

Digital signatures and QR codes

Every submitted invoice gets the digital signature and QR code LHDN requires. This is handled entirely by B Invoice the finance team doesn’t need to touch it.

Status writeback to Oracle Cloud

When LHDN responds accepted, rejected, or pending the status and e-invoice reference number write back into Oracle Cloud automatically. The audit trail is complete without anyone checking a second dashboard.
Day-to-Day Flow

What the Process Actually Looks Like Now

From the finance team's perspective, nothing changed. From LHDN's perspective, every invoice arrives correctly formatted, signed, and on time.

01

Invoice posted in Oracle Cloud

That’s the only action required. The AP or AR clerk does what they’ve always done. Posting the invoice is the trigger nothing else needed.

02

B Invoice validates before submission

Fields are checked for completeness and accuracy. Tax mismatches are flagged before the invoice ever reaches LHDN problems get caught here, not in a rejection notice.

03

Clean invoices are formatted, signed, and submitted

B Invoice converts the invoice to MyInvois XML, attaches the digital signature and QR code, and submits via the LHDN API. All within minutes of the original posting.

04

LHDN response lands in Oracle Cloud

Acceptance or rejection status, plus the e-invoice reference number, are written back into Oracle Cloud automatically. No one needs to log into MyInvois to check.

05

Month-end reconciliation

B Invoice compares invoice counts between Oracle Cloud and LHDN. Every gap is flagged. The finance team has a clean reconciliation record without any manual work.
The Results

Compliant from Day One. Zero Disruption.

500

Invoices processed through B Invoice every month, including high-value SST-bearing transactions

100%

LHDN compliance from day one no rejections in the first submission batch

<3 wks

From kickoff to full production go-live, covering both AP and AR

Zero

Changes to Oracle Cloud workflows the finance team learned nothing new

I didn't even know it was live until someone told me we were compliant.

Finance Director, Upstream Oil & Gas Operator, Peninsular Malaysia

That quote says everything. The measure of a good compliance integration isn’t that it works. it’s that no one in the finance team had to think about it.
The company is now fully live and processing every AP and AR invoice through B-Invoice. As Malaysia’s mandate extends to all taxpayers, the system is already there. It just keeps running.
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Need LHDN Compliance on Oracle Cloud?

B Invoice is built for ERP customers. If your Oracle Cloud environment needs to be MyInvois-ready without disrupting the way your finance team works, let's talk.

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