Stackifier
WhatsApp-native billing

Run billing follow-up from WhatsApp.

Forward invoices and receipts to Stackifier on WhatsApp. It updates your Google Sheet, shows who is unpaid, and prepares reminders your team approves.

Book a billing pilotSee how it works
Editorial illustration of Stackifier sending an invoice and payment reminder over WhatsApp, with payments and receipts flowing into the Stackifier dashboard
Collections control

Find the money stuck in WhatsApp.

Ask once and see who needs chasing, who promised to pay, and which proof needs human review.

RM 18,700 found3 to chaseApproval held
S
Stackifier Assistant
online - collections
What cash is stuck today? Exclude anyone who promised to pay this week. 10:04 AM
RM 18,700 needs action. 3 customers need chasing, 2 promised Friday, 1 proof is short. 10:04 AM
Prepare reminders for the 3. Add TNG links. Don't send yet. 10:05 AM
Ready for approval. Sheet updated: Chase today, Promise-to-pay, Proof mismatch. 10:05 AM
TNG payment link
tngdigital.example/pay/tan-1287
Tan Logistics - RM 9,400

.

10:05 AM
Review reminders
Runs inside WhatsApp
Google Sheets stays updated
Malaysia E-Invoice ready output
Built for Malaysian businesses
How it works

From forwarded invoice to approved reminder, without leaving chat.

01

Forward the invoice to Stackifier

Send an invoice, receipt, order note, or payment slip to the Stackifier WhatsApp assistant. No portal, no upload flow.

02

Ask what is unpaid

Get the overdue list back in chat by customer, ageing, or amount, ready for your team to review.

03

Approve the next action

Stackifier prepares polite WhatsApp reminders, receipts, and statements, while keeping the finance record ready for Malaysia E-Invoice workflows.

Any language

Customer does not speak English? No problem.

Stackifier agents understand any language your customer uses, then prepare the right reply and keep finance records clean.

Chinese understoodPromise trackedReply prepared
S
Stackifier Assistant
online - language support
客户回复：老板，星期五可以先还一半吗？ 11:14 AM
已理解：客户要求星期五先付一半。Tan Logistics 余额 RM 9,400，收到 proof 前保持未结清。 11:14 AM
用中文回复，礼貌一点。加 TNG link，不要直接发。 11:15 AM
中文回复已准备好：可以先付一半，星期五前上传付款证明。Sheet 已更新，等待 approval. 11:15 AM
TNG payment link
tngdigital.example/pay/tan-1287
Tan Logistics - RM 9,400

.

11:15 AM
批准中文回复
Everything billing follow-up, in one place

The repeat accounts-receivable work, run from WhatsApp.

Invoicing

Forward invoices or order notes and keep every customer thread attached to the right record.

Payment reminders

Prepare polite WhatsApp follow-ups for unpaid invoices and approve before sending.

Receipt collection

Customers and field staff reply with payment slips or receipt photos; Stackifier files them against the right customer.

Unpaid list

Ask what is unpaid by customer, ageing, collector, or entity, then act from the answer.

E-Invoice ready

Capture the fields your finance team needs for Malaysia E-Invoice workflows, with pilot exports shaped around your accountant or MyInvois process.

Receipts and statements

Send receipts and customer statements from the same WhatsApp-led billing record.

Receipt match

Proof checked before finance marks paid.

Payment screenshots become a controlled review step, not another mystery image in WhatsApp.

Proof readAmount checkedHuman approval
S
Stackifier Assistant
online - receipt collection
Customer says paid already. Check this before I close the invoice. 2:31 PM
PDF
ABC-payment-proof.pdf
PDF - 96 KB

.

2:31 PM
Matched to INV-1024, but proof shows RM 1,900. Invoice balance is RM 2,100. 2:31 PM
Mark as partial only. Prepare the balance follow-up. 2:33 PM
Recorded partial payment. Balance reminder is ready for approval. 2:33 PM
Approve balance
Who it's for

Built for teams already chasing payment on WhatsApp.

01 · Distribution

Distribution & wholesale

Track trade customer invoices, ageing, reminders, and payment slips without hunting through staff chats.

02 · Field

Field sales & services

Reps forward job invoices and payment proof from the field while the finance sheet stays current.

03 · Property

Property & facilities ops

Track tenant, owner, vendor, and maintenance billing follow-ups across many WhatsApp threads.

04 · Trades

Contracting & trades

Keep progress claims, unpaid invoices, receipts, and reminders moving without a full back-office team.

Field teams

Completed jobs stop waiting for an invoice.

Field teams forward proof once. Finance sees what was done, what is missing, and how much can be billed.

Job proofInvoice missingRM 12,800 found
S
Stackifier Assistant
online - field billing
Block B service completed. Customer asked when invoice will arrive. 4:18 PM
PDF
Block-B-proof.pdf
PDF - 212 KB

.

4:18 PM
Found job proof for Property - Block B. No invoice row exists. Estimated billing: RM 12,800. 4:18 PM
Tag it to the right customer and remind me before end of day. 4:21 PM
Tagged Property - Block B. Billing task added for end-of-day review. 4:21 PM
Open billing task
Daily control

End the day knowing what moved and what is blocked.

Owners and finance leads see money chased, money promised, short proofs, and tomorrow's decisions.

RM 42,300 moved2 promised1 blocked
S
Stackifier Assistant
online - AR summary
Before I leave, summarize today's AR movement and anything stuck. 5:02 PM
Today: RM 42,300 moved. 7 reminders prepared, 4 approved, 2 promised Friday, 1 proof mismatch. 5:02 PM
What needs a human decision tomorrow morning? 5:04 PM
Only Tan Logistics is blocked: proof short by RM 800. Sheet export is ready. 5:04 PM
Send summary
Get started

Book a WhatsApp billing pilot.

Start with your real invoice and reminder workflow. We will shape the pilot around your current WhatsApp billing process.

Book a billing pilotAsk about the pilot