Many companies keep their accountant's software and add an ERP for sales, stock and purchasing. That works, as long as the two systems agree on every number.
Option 1: Connect the two systems
Keep your accounting software and send it the transactions the ERP creates. Good when your accountant or auditor depends on that package.
Option 2: Accounts inside the ERP
Run the ledger inside the ERP itself. One system, no sync to break, and reports that show stock and money together. Good when the current accounting is Excel or a basic package.
Steps for a clean integration
- Pick the master: which system creates customers, suppliers and items, and which only receives them.
- Map the chart of accounts: every ERP transaction type (sale, purchase, return, payment, expense) points to the right ledger account.
- Map taxes: sales tax in Pakistan, or 5% VAT in the UAE, with the same codes on both sides.
- Choose the method: a live API connection, or a scheduled export and import if the package has no API.
- Handle errors: a failed invoice must show up on a list someone checks, not disappear.
- Reconcile: run both for a month and match receivables, payables, stock value and tax totals before trusting the link.
When receivables sit in a separate system
A common version of this problem: customer invoices and receipts are kept in a separate accounts receivable (AR) or billing system, while the ERP holds the general ledger. The two stay in step only when they share one chart of accounts, not two that look alike. The mapping table, the six steps and the monthly check are set out in how to sync the chart of accounts between AR and ERP systems. How the accounts side of an ERP posts on its own is covered in ERP financial management.
Common mistakes
- An account added in one system only, so its entries have nowhere to land in the other.
- Customers created in both systems, so the same client exists twice.
- Invoices edited in the accounting package after they sync, so the ERP no longer matches.
- Tax rounding done differently on each side.
Tax treatment is set by your accountant; for the UAE see UAE VAT in your ERP and POS, and for Pakistan FBR POS integration. Our ERP software includes an accounts module or connects to the one you have, and the Sea Keepers ERP shows finance per order. What drives the price is in ERP software cost in Pakistan. Book a demo to discuss your setup.
Questions people ask
Can we keep our accounting software and add an ERP?
Yes. The ERP runs sales, stock and purchasing and sends the transactions it creates to the accounting package your accountant already uses.
Which system should be the master?
Decide it for each kind of record: customers, items and invoices each have one home, and the other system receives a copy. Two masters for the same record is how the numbers drift apart.
How do we know the integration is reliable?
Reconcile both sides for a full month before relying on it. Sales, purchases and payments should total the same in the ERP and in the accounts.
When is it better to move the accounts into the ERP?
When the accounting package cannot share data reliably, or when the accounts are kept in Excel. One system then means no sync that can break.
