VBA & Macro Problems

How to Fix Excel VBA Code Not Running After an Update

Elise Williams Oct 8, 2026 869 views

Question details

The user's event-driven Excel VBA macro stopped working because an invalid event procedure name was utilized in the code.

How to Fix Excel VBA Code That Stopped Running After an Update

Product: Microsoft Excel
Device & OS: not provided
Scenario: The user modified their VBA macro or updated the workbook, resulting in the code no longer triggering automatically as expected.
Observed behavior: The VBA code fails to execute because a non-existent event name (Worksheet_Trigger) is used, causing the event to be ignored entirely.

Before you start

Ensure that macros are enabled in your Excel Trust Center settings and that your workbook is saved as a Macro-Enabled Workbook (.xlsm).

Solution 1Recommended

Correct Invalid Event Procedure Names

Identify and rename invalid worksheet events to standard Excel event names to restore automatic macro functionality.

Excel requires specific, built-in names for event-driven macros. Custom names or incorrectly guessed names like 'Worksheet_Trigger' will not automatically execute because Excel's compiler does not recognize them as valid trigger events.

Open the VBA Editor

Press Alt + F11 on your keyboard while Excel is open to launch the Microsoft Visual Basic for Applications editor.

Locate Your Worksheet Code

In the Project Explorer pane on the left, double-click the specific Worksheet module (e.g., Sheet1) where your non-working code resides.

Rename the Procedure

Check the sub procedure name at the top of your code. Change invalid names like 'Private Sub Worksheet_Trigger()' to the correct event name 'Private Sub Worksheet_Change(ByVal Target As Range)'.

Save and Test

Save the VBA code, return to your Excel workbook, and modify a cell to verify that the Worksheet_Change event triggers successfully.

Use the Drop-down Menus: To prevent typos in the future, select 'Worksheet' from the left drop-down menu above the code window, and choose your desired event (like 'Change' or 'SelectionChange') from the right drop-down menu to auto-generate the correct signature.

Solution 2

Prevent Recursive Event Triggers Using EnableEvents

If your Worksheet_Change event writes data to cells, it might trigger itself in an endless loop, causing Excel to freeze or crash.

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Frequently Asked Questions

What are the valid Worksheet events in Excel VBA?

Common valid events include Worksheet_Change, Worksheet_SelectionChange, Worksheet_Activate, and Worksheet_Calculate. It is best to select them directly from the top-right procedure drop-down in the VBA editor to ensure correct spelling and parameters.

Why does my Excel macro stop running without showing any error messages?

This frequently happens if 'Application.EnableEvents' was set to False by a previous macro and never set back to True due to an error, or if the macro uses an invalid event name that the application simply ignores as standard text.

How do I manually re-enable events if my VBA code previously crashed?

Open the VBA Editor by pressing Alt + F11, open the Immediate Window by pressing Ctrl + G, type 'Application.EnableEvents = True', and hit Enter. This will manually turn event tracking back on.

Excel & Data Problems