1
Scope the landscape
We list legal entities, the accounting application, connected billing or payroll tools, and who holds vendor admin rights. If MyInvois is in the path, it is treated as part of the landscape, not as a side system.
Methodology
Six steps from access to a file a controller can keep
This is the sequence we use on posting-rule audits and, with small changes, on e-Invoice mapping, bank-feed, and go-live work. It is not a software method. It is how we build a working-paper file around an application.
2
Export the posting matrix
Before we sample a single invoice, we take the rules the application uses to choose accounts and tax codes. That export is dated and filed. Later upgrades are compared against it.
3
Walk documents to the ledger
A sample of invoices, credit notes, receipts, and payroll runs is traced from the originating screen to the journal line. We note retries, suffixes, and any second posting triggered by a webhook or a tax acknowledgement.
4
Test tax and e-Invoice fields
Codes in the application are compared with what was submitted and with the ledger treatment. Credit notes are walked in both directions. Exemption flags are not taken on trust.
5
Write observations, not slides
Each finding has a condition, a criterion, a cause if we can see one, and an effect on the books. We do not grade the vendor. We describe what the books did.
6
Sit with the implementer if you want
Remediation is yours to instruct. If you ask, we join a call and translate the observation log into configuration changes. We do not take a fee from the vendor for that call.
Who carries the file
Aisha Rahman
Principal
Aisha spent twelve years in internal audit for a peninsula trading group before opening the Langkawi practice. She still signs every observation log that leaves the office.
Lim Wei Jie
Application controls specialist
Wei Jie came from an implementer desk. He knows how posting matrices are built, which is why he is the person we send to unpick them.
Priya Nair
Tax mapping and e-Invoice review
Priya works the gap between MyInvois fields and the ledger. She previously supported SST filings for a multi-outlet retailer.