Safe Links creation fails for unknown reason

Question

However I try to create Safe Links policy in M365 Defender, I always get this unknown error message.

Answer 1

I ran into this when creating a Safe Links policy and the fix was to remove all the spaces from the Policy Name (even though the default policy name has spaces in it). Makes no sense, but it worked in my case.

Answer 2

Hi @Pavel yannara Mirochnitchenko ,

Please check whether the account has the following role permissions:

1. A member of the Organization Management or Security Administrator role group in the Microsoft 365 Defender portal

2. A member of the Organization Management role group in Exchange Online.

 

If your account meets the above conditions and still cannot create a policy, we recommend that you refer to the following link to configure a Safe Links policy with PowerShell for more detailed error information for our better research.

Set up Safe Links policies in Microsoft Defender for Office 365 - Office 365 | Microsoft Learn

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Answer 3

Hi @Pavel Yannara Mirochnitchenko ,

Thank you for posting an update on this issue and I'm glad to hear that your problem was successfully resolved! Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others", I'll repost your solution in case you'd like to "Accept" the answer.

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[Safe Links creation fails for unknown reason]
Issue Symptom:

 I try to create Safe Links policy in M365 Defender, I always get this unknown error message.

Solution：

After a few hours, try creating the Safe Links policy again, and it works.

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Answer 4

 

Hi @Pavel yannara Mirochnitchenko ，

For this error, I found some similar threads solved through Enable-OrganizationCustomization, please connect to Exchange Online PowerShell and run the following command to check IsDehydrated parameter：

 

Get-OrganizationConfig | Format-List Identity,IsDehydrated

 

If it is true, run the following command and create the Safe Links policy again to see if it works.

 Enable-OrganizationCustomization

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Answer 5

I ran into this today.

Ensure your policy name has no symbols or spaces at all. Just uppercase and lowercase letters and numbers are accepted.