Exam objective 1.2 asks you to describe general ledger and financial management capabilities in Dynamics 365 Finance. This concept matters because every organisation needs a single source of truth for its financial data — without it, accountants would drown in spreadsheets, errors would cascade, and executives couldn't make informed decisions. For the MB-920 exam, you must understand how the general ledger acts as the central hub that connects all financial transactions across a business.
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A simple way to picture General Ledger and Financial Management
A household financial manager is the person in a family who tracks every pound that comes in and goes out, makes sure bills are paid on time, and can tell you exactly how much money is left for groceries after the rent is paid. That manager keeps a master notebook — the general ledger — where every single transaction is recorded: the salary deposit, the electricity bill, the birthday money from Grandma, and the cash spent at the corner shop. Each transaction gets coded into a specific category, such as 'Housing', 'Food', or 'Entertainment', which are like the chart of accounts in Dynamics 365 Finance.
Now imagine the family has several bank accounts: one for daily spending, one for savings, and one for holiday funds. The financial manager needs to move money between them and reconcile each account's statement with the master notebook to ensure nothing is missing. In a business, that is exactly what an accountant does: they manage subledgers (like the family's bank accounts) for specific transaction types such as sales, purchases, and payroll, then post summaries to the general ledger (the master notebook) to get a complete picture of the company's financial health at any moment.
When the financial manager wants to know if the family can afford a new car, they run a simple report — like a trial balance — that shows all income minus all expenses. In Dynamics 365 Finance, the general ledger provides the real-time data for financial statements such as the profit and loss statement and the balance sheet, enabling decision-makers to see the company's position instantly rather than waiting for month-end manual spreadsheets.
The general ledger (GL) is the central repository where a company records every financial transaction. Think of it as the master set of accounts that summarises all business activities. Every time a sale is made, a bill is paid, or an employee receives a salary, that transaction eventually flows into the general ledger. The general ledger is not a single account — it is a collection of accounts, each of which tracks a specific type of financial activity. For example, there might be a 'Cash' account, a 'Sales Revenue' account, a 'Rent Expense' account, and so on. The complete list of all these accounts is called the chart of accounts.
In Dynamics 365 Finance, the general ledger is the core module that provides the foundation for financial management. It replaces the old manual approach where accountants would write entries in physical books or maintain multiple disconnected Excel spreadsheets. With a digital general ledger, every transaction is recorded automatically, in real time, and can be traced back to its source — whether that source is a customer invoice, a purchase order, or an employee expense report.
How does a transaction actually get into the general ledger? The process starts in a subledger. A subledger is a detailed record of transactions for a specific area, such as accounts payable (money you owe to suppliers) or accounts receivable (money customers owe you). For example, when your company buys office supplies from a vendor, the purchase is first recorded in the accounts payable subledger as a journal entry. A journal entry is a record of a financial transaction that includes at least one debit and one credit, ensuring the accounting equation (Assets = Liabilities + Equity) always stays balanced. Periodically, or in real time, the totals from the subledger are posted to the general ledger. This posting updates the relevant accounts — for instance, increasing the 'Office Supplies Expense' account and decreasing the 'Cash' account.
Why does this matter? Because the general ledger is the source for all financial reporting. From it, you can generate three critical financial reports:
The trial balance: a list of all accounts and their balances at a specific point in time. It is used to verify that total debits equal total credits.
The profit and loss statement (also called the income statement): shows revenue minus expenses over a period, revealing whether the company made a profit or a loss.
The balance sheet: shows the company's assets, liabilities, and equity on a specific date, giving a snapshot of financial health.
In Dynamics 365 Finance, the general ledger also supports more advanced capabilities. For example, it uses financial dimensions to categorise transactions beyond the basic account code. A financial dimension is an additional label, such as 'Department', 'Cost Centre', or 'Project', that allows you to slice and analyse financial data in multiple ways. If you want to see how much the Marketing department spent on office supplies in March, financial dimensions make that possible without creating separate accounts for every combination.
Another key feature is the allocation process. Sometimes expenses need to be shared across departments or projects. For example, the rent for a building used by both Sales and IT might be split 50-50. Dynamics 365 Finance can automatically allocate such amounts based on rules you define, saving hours of manual calculation.
The general ledger also integrates with the fiscal calendar. A fiscal calendar defines the accounting periods — usually months or quarters — that a company uses to report financial results. When you close a period, you lock it so no further changes can be made, ensuring the integrity of reported numbers.
For the MB-920 exam, you need to know that the general ledger is the central component of financial management in Dynamics 365 Finance. It is not an optional add-on; it is the mandatory foundation. All other financial modules — including accounts payable, accounts receivable, fixed assets, and budgeting — feed into it. Understanding how data flows from subledgers to the general ledger, and how financial dimensions add analytical power, is essential.
Define the chart of accounts
An accountant or system implementer creates the list of all accounts the business will use, such as Cash, Sales Revenue, and Rent Expense. Each account gets a unique code. This step is essential because the general organiser cannot function without a chart of accounts — it is the backbone of all financial recording.
Set up financial dimensions
Additional categorisation layers such as Department, Cost Centre, or Project are added. For example, a Sales Revenue transaction can be tagged with Department = 'Sales' and Project = 'Widget Campaign'. This allows the general ledger to produce detailed reports without requiring a separate account for every combination.
Configure the fiscal calendar
The organisation's accounting periods (e.g., monthly or quarterly) are defined in Dynamics 365 Finance. The calendar determines when periods open and close, which controls when transactions can be posted. Without a fiscal calendar, the general ledger would not know how to aggregate data into reporting periods.
Record transactions in subledgers
Day-to-day financial activities such as customer invoices, supplier payments, and employee expenses are entered in the appropriate subledger (accounts receivable, accounts payable, or fixed assets). Each subledger keeps a detailed audit trail of every individual transaction.
Post subledger totals to the general ledger
Periodically or in real time, the subledger sends summary journal entries to the general ledger. For example, the accounts payable subledger posts the total amount of invoices paid today. This step updates the general ledger account balances and ensures financial reports reflect the latest data.
Generate financial reports
Using the general ledger, the finance team runs reports such as the trial balance, profit and loss statement, and balance sheet. These reports are used for internal decision-making, external audits, and regulatory compliance. The general ledger makes this possible because it contains all summarised financial data in one place.
Close the fiscal period
At the end of each month or year, the accountant runs a closing process that locks the period to prevent further changes. This step ensures that reported numbers are final and cannot be altered later. Dynamics 365 Finance automates much of this process, but the accountant must review and confirm the closing entries.
An IT professional or system implementer setting up Dynamics 365 Finance for a mid-sized manufacturing company would start by configuring the general ledger. The company, let us call it 'WidgetCo', has 200 employees, three departments (Production, Sales, and Administration), and two product lines. The goal is to ensure that every financial transaction is captured accurately and that the finance team can generate reports without manual effort.
Step one: the IT professional works with the company's accountant to define the chart of accounts. This involves deciding which accounts to include. WidgetCo needs accounts such as 'Cash', 'Accounts Receivable', 'Raw Materials Inventory', 'Sales Revenue', 'Cost of Goods Sold', 'Rent Expense', and 'Salaries Expense'. Each account gets a unique code — for example, 1010 for Cash, 4010 for Sales Revenue.
Step two: they set up financial dimensions. The accountant wants to track expenses by department and by product line. The IT professional creates two dimensions: 'Department' (with values: PROD, SALES, ADMIN) and 'ProductLine' (with values: GADGET, GIZMO). Now, every transaction can be tagged with the appropriate department and product line. For example, a sale of a Gadget to a customer would be recorded in Sales Revenue, with Department = SALES and ProductLine = GADGET.
Step three: they configure the fiscal calendar. WidgetCo uses a standard January-to-December calendar with monthly periods. The IT professional sets up the periods in Dynamics 365 Finance and defines the current fiscal year.
Step four: they test the integration with subledgers. WidgetCo uses the accounts payable module to pay suppliers for raw materials. When a purchase order is approved and the goods arrive, the AP clerk enters an invoice. That invoice creates a journal entry in the AP subledger: debit Raw Materials Inventory, credit Accounts Payable. When the subledger posts to the general ledger, those amounts appear in the appropriate accounts. The IT professional runs a test to confirm that the totals match.
Step five: they train the finance team. The accountant needs to generate a monthly trial balance. In Dynamics 365 Finance, they go to the 'General ledger' workspace and run the 'Trial balance' report. It shows all accounts with their debit or credit balances. The accountant also runs a profit and loss statement for the Sales department for Q1. Because they used the Department dimension, they can filter the report to show only transactions tagged with Department = SALES.
Step six: the IT professional sets up a periodic task called 'Currency revaluation'. WidgetCo sells to customers in Europe and receives payments in euros. At month end, the euro balance in the bank account must be revalued to the local currency (GBP) using the current exchange rate. Dynamics 365 Finance can automatically calculate the gain or loss and post a journal entry to the general ledger.
Throughout this process, the IT professional is not manually recording transactions — that is the accountant's job. Instead, they are configuring the system, ensuring data flows correctly, testing integrations, and troubleshooting issues. They might also create security roles to control who can post to the general ledger or close a period. For example, only the finance manager should be able to close a fiscal period to prevent accidental changes.
A common real-world challenge is data migration. When WidgetCo moves from an old accounting system to Dynamics 365 Finance, the IT professional must bring over the opening balances — the balances of each account on the day the new system goes live. This is done by creating a journal entry in the general ledger that debits or credits each account with its opening balance. If this is not done correctly, the trial balance will not balance, and all subsequent reports will be wrong.
The MB-920 exam tests your understanding of the general ledger and financial management in Dynamics 365 Finance through scenario-based multiple-choice questions. You will not be asked to perform actual configuration steps, but you must know the purpose and relationships of key components.
Here are the specific topics the exam loves to test:
The role of the general ledger as the central repository for all financial transactions. Expect questions that ask what happens when a transaction is posted from a subledger. The correct answer will always indicate that the general ledger is updated, not that data is stored only in the subledger.
The chart of accounts. You might see a question asking which component defines the list of accounts a company uses. The chart of accounts is the answer. Be careful — some answer options may mention 'fiscal calendar' or 'financial dimensions', which are adjacent but not the same.
Financial dimensions. The exam often asks why financial dimensions are useful. The correct answer is that they allow you to analyse transactions by additional categories (like department or project) without creating separate accounts. A common trap is an answer saying financial dimensions replace the chart of accounts — that is false.
The trial balance. You may be asked what the trial balance is used for. The answer: to ensure that total debits equal total credits. Do not confuse it with the profit and loss statement or balance sheet.
The integration between subledgers and the general ledger. A typical question: 'When an invoice is paid in the Accounts Payable module, which of the following is updated?' The correct answer is both the subledger and the general ledger (because the subledger posts to the GL).
Closing periods. Questions may ask about the purpose of closing a fiscal period. The correct answer is to prevent further postings to that period and to ensure financial data integrity.
Trap patterns to watch for:
The exam likes to pair the general ledger with the term 'subledger' and ask which one contains the most detail. The subledger contains the detailed transactions; the general ledger contains summary-level balances. Beginners often assume the opposite.
They will present a list of reports and ask which one is generated directly from the general ledger. The trial balance, profit and loss statement, and balance sheet all come from the general ledger. But a report like 'Aged Accounts Receivable' comes from the subledger, not the GL. Watch for that distinction.
Questions about financial dimensions might include a distractor that claims dimensions are used only for budgeting. In reality, dimensions are used for general reporting and analysis across all modules.
Key definitions you must memorise for the exam:
General ledger: the central repository of all financial transactions, organised by account.
Chart of accounts: the complete list of accounts used by an organisation.
Financial dimension: a categorisation label (e.g., Department, Cost Centre) that adds analytical depth to transactions.
Fiscal calendar: defines the accounting periods for reporting.
Subledger: a detailed record of transactions for a specific area (AP, AR, fixed assets) that posts summaries to the general ledger.
Trial balance: a report listing all accounts and their balances to verify debits equal credits.
Journal entry: a record of a transaction with at least one debit and one credit.
The exam questions are typically short — two to four sentences — and ask you to pick the best answer from four options. You do not need to memorise specific Dynamics 365 menu paths or button names. Focus on concepts, definitions, and the flow of data.
The general ledger is the central hub in Dynamics 365 Finance that stores summary balances for every financial account in the chart of accounts.
All transactions from subledgers (accounts payable, accounts receivable, fixed assets) must post to the general ledger to provide a complete financial picture.
Financial dimensions such as Department or Cost Centre allow you to analyse transactions without creating separate accounts for each category.
The trial balance report verifies that total debits equal total credits and is generated directly from the general ledger.
Closing a fiscal period in the general ledger prevents further postings and protects the integrity of reported financial data.
The chart of accounts is not the same as the general ledger — it is simply the list of account names and codes used by the organisation.
Subledgers contain detailed transaction data, while the general ledger holds summarised balances — always look for the level of detail in exam questions.
Real-time posting from subledgers to the general ledger replaces manual month-end reconciliations in traditional accounting systems.
These come up on the exam all the time. Here's how to tell them apart.
General Ledger
Stores summary-level balances for each account
Is the source for trial balance and financial statements
Contains only aggregated data, not individual transactions
Subledger
Stores detailed individual transactions for a specific area
Is the source for detailed reports like aged receivables
Contains every single invoice, payment, or purchase order detail
Chart of Accounts
Defines the list of account names and codes
Is mandatory and used by every transaction
Identifies what type of transaction occurred (e.g., 'Sales Revenue')
Financial Dimensions
Defines additional categorisation labels like Department
Is optional but highly recommended for analysis
Identifies where or who the transaction belongs to (e.g., 'Department = Sales')
Profit and Loss Statement
Shows performance over a period (revenue minus expenses)
Includes only income and expense accounts
Answers: Did we make a profit?
Balance Sheet
Shows financial position at a single point in time
Includes assets, liabilities, and equity accounts
Answers: What do we own and owe?
Mistake
The general ledger is the same as the chart of accounts.
Correct
The chart of accounts is a list of account names and codes; the general ledger is the actual repository that stores the balances for each of those accounts.
Beginners confuse a list (chart of accounts) with a storage container (general ledger) because both are closely associated and often discussed together.
Mistake
Subledgers are optional — you can record everything directly in the general ledger.
Correct
Subledgers are mandatory in Dynamics 365 Finance because they provide the detailed transaction records needed for reconciliation; the general ledger only stores summary totals from subledgers.
People think a central system should store everything directly, but in practice, subledgers reduce clutter and provide granular audit trails.
Mistake
Financial dimensions are the same as account numbers.
Correct
Account numbers identify what the transaction is (e.g., 'Sales Revenue'), while financial dimensions identify who or where it belongs (e.g., 'Department = Marketing'). They are separate attributes.
Both are used to categorise transactions, so beginners lump them together, but the exam tests them as distinct concepts.
Mistake
The profit and loss statement and the balance sheet contain the same information.
Correct
The profit and loss statement shows performance over a period (revenue minus expenses), while the balance sheet shows financial position at a single point in time (assets, liabilities, equity).
Both are financial statements, so novices think they are interchangeable, but they serve completely different purposes.
Reveal each answer, then mark whether you got it right. Score 60%+ to unlock the next chapter.
The general ledger stores summary balances for each account, while a subledger holds the detailed individual transactions for a specific area such as accounts payable. Think of the general ledger as the big picture and the subledger as the magnifying glass.
No, the MB-920 exam tests conceptual understanding, not hands-on configuration. You need to know what the general ledger does, its relationship with subledgers, and the purpose of financial dimensions.
Financial dimensions are labels like Department or Cost Centre that you can attach to transactions. They let you analyse financial data across different parts of the business without creating separate accounts. This is important for budgeting and departmental reporting.
No, the chart of accounts is mandatory. Every transaction in the general ledger must be assigned to an account from the chart. Without it, there would be no structure for categorising financial data.
The trial balance lists every account and its balance to check that total debits equal total credits. It is a verification tool that accountants use to ensure the books are balanced before creating financial statements.
Yes, you can configure automatic or scheduled posting. When a transaction is completed in a subledger, the system can immediately create and post the corresponding journal entry to the general ledger. This eliminates manual data entry.
You've finished General Ledger and Financial Management. Continue through the MB-920 study guide to build a complete picture of the exam.
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