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The Custom Form Cannot be Opened in Outlook: 5 Ways to Fix

When forms aren’t working, be sure to check your Outlook settings

3 min. read

Updated onJuly 9, 2024

updated onJuly 9, 2024

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The custom form cannot be openederror in Outlook can cause many problems, especially if you rely on forms for your business or school projects.

Without custom forms you won’t be able to gather the necessary user information, but luckily, there are a couple of solutions that can help you with that.

Why does The custom form cannot be opened message appear in Outlook?

What can I do if Outlook can’t open a custom form?

1. Check if Microsoft Outlook item uses a correct Form

If this doesn’t work, proceed to the next solution listed below.

2. Try to manually clear form cache

If this method doesn’t work either, you should check the integrity of yourMicrosoft Officeinstall.

3. Install third-party repairing software for Outlook

Stellar Repair for Outlook

4. Open Microsoft Outlook in Safe Mode

4.1. Press and hold the CTRL key to open an Office application

4.2. Use the /safe option to open an Officeapplication

5. Uninstall any third-party add-ins

How do I manage forms in Outlook?

If none of the methods listed above work, you could also tryrepairing your Office Installationoruninstall Microsoft Officeand install it again.

Did our solutions help withThe custom form cannot be opened, Outlook will use an outlook form insteaderror? If you have found a different solution, feel free to share it with us in the comments section.

The Custom Form Cannot be Opened in Outlook: 5 Ways to Fix#

What can I do if Outlook can’t open a custom form?#

1. Check if Microsoft Outlook item uses a correct Form#

2. Try to manually clear form cache#

3. Install third-party repairing software for Outlook#

Stellar Repair for Outlook#

4. Open Microsoft Outlook in Safe Mode#

5. Uninstall any third-party add-ins#

How do I manage forms in Outlook?#