Event ID 625 — Trust Policy and Configuration

Applies To: Windows Server 2008

The Active Directory Federation Services (AD FS) trust policy file defines the set of parameters that a Federation Service requires to identify partners, certificates, account stores, claims, and the various properties of these entities that are associated with the Federation Service.

Event Details

Product: Windows Operating System
ID: 625
Source: Microsoft-Windows-ADFS
Version: 6.0
Symbolic Name: TrustPolicyFieldMustBePresent
Message: The Federation Service encountered an error while loading the trust policy. The required trust policy field '%1' was not present.
Field: %1

If this error occurs during startup of the Federation Service, the Federation Service will be not be able to start, and all requests to the Federation Service will fail until the configuration is corrected. If this error occurs while the Federation Service is running, the Federation Service will continue to use the last trust policy that was loaded successfully.

User Action
Configure the '%1' field with a valid value.


Add any missing fields in the trust policy

Make sure that you have a valid trust policy file that can be loaded by the Active Directory Federation Services snap-in and that there are no missing fields in the trust policy.

To perform this procedure, you must be a member of the local Administrators group, or you must have been delegated the appropriate authority.

To determine if a required parameter is missing in the trust policy:

  1. On the federation server, click Start, point to Administrative Tools, and then click Active Directory Federation Services.
  2. In the console tree, under Federation Service right-click Trust Policy, and then click Properties.
  3. On the General tab, do one of the following:
    • If the Federation Service Uniform Resource Identifier (URI) is missing, add the proper value that is associated with this trust policy file.
    • If the Federation Service endpoint Uniform Resource Locator (URL) is missing, add the proper value that is associated with this trust policy file.

If you use the trust policy object model, see if there is a logic error in the way that the trust policy object model interface is called.

For more information, see the software development kit (SDK) documentation for the trust policy object model (http://go.microsoft.com/fwlink/?LinkId=93646).


Verify that you can access the Active Directory Federation Services (AD FS)-enabled application from a client browser and that the resource can be accessed.

Trust Policy and Configuration

Active Directory Federation Services