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When you update the category associations for a product in Microsoft Commerce Server 2009 or in Microsoft Commerce Server 2007, the DateModified property of the product is not updated.

This problem occurs when all the following conditions are true:

  • You remove or add a product's category association by editing the Product Associations page for a category in Commerce Server Catalog Manager.

  • The product has more than two category associations before you remove the existing category association or after you add the new category association.

For example, this problem occurs in the following scenario:

  • You assign a product to three parent categories on the Category Associations page in Catalog Manager.

  • You open the category properties of one of the associated categories and then remove the product on the Product Associations page.

Note The DateModified property is also known as the LastModifed column in the CatalogName_CatalogProducts table in the catalog database.


This problem occurs because of a bug in the Commerce Server catalog database.


Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website: The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


To apply this hotfix, you must have one of the following installed:

  • Microsoft Commerce Server 2009

  • Microsoft Commerce Server 2007 Service Pack 2 (SP2)

For more information about how to obtain the latest service pack for Commerce Server 2007, click the following article number to view the article in the Microsoft Knowledge Base:

939284 How to obtain the latest Commerce Server 2007 service pack

Installation instructions

To apply this hotfix, follow these steps:

  1. Extract the hotfix package to a folder.

  2. Apply the hotfix. To do this, double-click the .exe file and then follow the prompts to apply the hotfix.

    For example:

    • For Commerce Server 2009, double-click the CommerceServer2007SP3-KB2484543-ENU.exe file.

    • For Commerce Server 2007, double-click the CommerceServer2007SP2-KB2484543-ENU.exe file.

    Note This step resolves this problem for new databases.

  3. Run the KB2484543.sql file to resolve this problem for existing databases.

Restart information

You do not have to restart the computer after you apply this hotfix. However, you must restart Internet Information Services (IIS) and the Commerce Server Catalog Import Host COM+ application after you apply this hotfix. To restart IIS, open a Command Prompt window, type the following command, and then press Enter:

iisreset /restartNote This option stops all IIS services that are running and then restarts them.

Replacement information

This hotfix does not replace a previously released hotfix.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

For Commerce Server 2009

File name

File version

File size





Not applicable




Not applicable







For Commerce Server 2007

File name

File version

File size





Not applicable




Not applicable

Note Because of file dependencies, the most recent fix that contains these files may also contain additional files.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information, visit the following Microsoft websites:

Commerce Foundation Product

Product Category Associations Page

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