Using an ERP system but never able to close the books: causes and fixes that need urgent attention

An ERP (Enterprise Resource Planning) system is designed to gather and link every part of an organisation’s data into one, making work fast and efficient, and should be a key tool that helps the financial close run smoothly. But if your organisation has the problem of “using an ERP yet still never able to close the books,” this is a danger signal whose cause must be found and fixed urgently.

The main causes that prevent closing the books on an ERP system

A slow or erroneous financial close in an ERP system usually does not arise from the system itself, but from factors related to its implementation, the processes, and the people — which can be divided into these key causes:

1. Data & Process Issues

Data incomplete or incorrect at source: ERP works according to the data entered into it. If staff in various departments (e.g. sales, warehouse) enter data incompletely, late, or incorrectly from the start (such as recording the wrong entry, or leaving expense documents outstanding), that data ripples through to accounting, leaving the figures mismatched and the books unclosable.
Data linkage between departments is not smooth: Even though ERP centralises data, if the configuration or the business process defined in the system does not match actual working, or there are “gaps” that leave the sales, accounting, and warehouse data not linked in real time (data silos), the figures will not match and reconciliation will take time.
Missing necessary adjusting entries: Some accounting entries — such as depreciation calculation, provisions, or revenue/expense accrual/deferral — may require correct recording or adjustment in the system. A lack of knowledge in using these ERP functions will leave the financial statements non-compliant with accounting standards.

2. User & Attitude Issues

Lack of knowledge and understanding of the system: Some staff may still cling to the old way of working (e.g. Excel) and not fully understand how ERP links data, or be unable to use the system’s complex functions correctly.
Inadequate training: The organisation may have provided training that was not comprehensive, or not continuously refreshed, leaving new users — or those involved in closing the books — unskilled at pulling reports, checking, and fixing anomalies in the figures.
Lack of awareness of the importance of the close: Users in other departments may see recording data quickly and accurately as solely their own department’s duty, without realising that this data is essential “raw material” for the accounting team’s close.

3. Configuration & Technical Issues

Accounting system set up incorrectly: The most direct cause is an error in the system’s core settings — for example, incorrectly defining the properties of the profit-and-loss and retained-earnings accounts in the chart of accounts, which leaves the system unable to process the closing transfer to start a new accounting period.
The system is too complex or lacks flexibility: The chosen ERP may have functions that are more complex than necessary, or cannot be fully customised to fit the organisation’s specific workflows.

Ways to fix it so the close in the ERP system succeeds

Fixing this problem must be done systematically and comprehensively, across people, processes, and technology:

1. Improve processes and standardise data recording

Enforce a “Single Source of Truth”: Ensure all data is recorded and processed only through the ERP system. Stop using Excel to gather finance-critical data, especially data at source (such as inventory receipts/issues and recording sales).
Set a clear closing timeline: Every related department must have a checklist and a cut-off date for submitting documents and recording entries before the actual closing day, so the accounting team has time to check and adjust.
Develop a Data Integrity Report: Build a report in the ERP system to detect data anomalies before closing day — such as unapproved entries, data not yet recorded in the accounting system, or discrepancies between stock and the accounts.

2. Invest in training and user support

Train with a focus on how the system links together: Training should not just focus on “which button to press,” but should make users see the overview of how recording their data affects accounting and the close, so they feel ownership of the data.
Build an internal expert team (key users): Appoint and train key staff in each department to be “true experts” in the ERP system, so they can advise and resolve first-level problems within their own department before it reaches IT or accounting.
Post-implementation support: Source external experts or internal staff with technical and accounting knowledge to help solve problems and improve the system’s accounting-related configuration specifically.

3. Check and improve the system configuration

Review the chart of accounts and account properties: The accounting team must work with the ERP administrator to check the chart-of-accounts settings, especially accounts involved in the period-end close, such as Retained Earnings and the accounts used for the period-closing transfer, to verify their account properties are set correctly as the system requires.
Re-engineer processes to fit the system: If actual workflows conflict too much with the ERP, consider re-engineering the processes to fit the ERP’s best practice, rather than trying to customise the system to the point where it becomes complex and error-prone.

When an organisation uses an ERP system yet still cannot close the books, it confirms that good technology alone is not enough. Success in using ERP for a fast, accurate close must come from the perfect coordination between a correctly configured system and users who understand it and work with discipline.

3 reasons you can't close the books on your ERP system