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Should "issuer" be truncated?

Maninder SinghSep 30 2025

Workflow or API calls:

Reminder: If this is referring to a client domain or EHR activity—not the public sandbox—do not include API request data or live patient data.

Background Information:

Failure to provide answers will impact our ability to respond in a timely and effective manner
Developer questions:

Are you an OPN Member? Yes / No
Have you signed up to be in the Healthcare Developer Track? Yes / No
Are you a registered Code Program member? Yes / No
Does your App have a presence on the Oracle Healthcare App Marketplace? Yes / No

Are you developing on behalf of an Oracle Health client?
If so, which client:

Application's Client ID and App ID, if relevant:

Application ID

59852ba4-17a9-468a-b085-9af3dddf1d36

Client ID

3d072e97-37f8-4c5a-ae54-d81461d4ea24

Expected Result:

This link describes a breaking change where the “issuer” field will be truncated.
https://forums.oracle.com/ords/apexds/post/breaking-change-iss-field-in-id-token-format-update-4643

We reference the “issuer” field at this URL for our client.

https://fhir-ehr.sandboxcerner.com/r4/12ef400e-c3a4-435a-9604-a3a16ffe67d5/.well-known/smart-configuration

However, it looks like from this page, the “issuer” field is already truncated. Could you please confirm if it is correct that at the well-known/smart-configuration that the ‘issuer’ should be truncated, and until the maintenance window, which value should be used? We notice an error when trying to use the truncated version.

Actual Result:

Authentication should be successful

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Added on Sep 30 2025
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