I cannot log in to my Oracle fusion hub.

Open My Sign-ins, locate the Oracle login attempt, and send its status, timestamp, error code, correlation ID, and the exact “invalid user” message to your company IT or Oracle administrator, because correcting application assignment, Oracle account provisioning, or SSO configuration normally requires administrative access.^1^

First identify where the login fails

1. Go to https://mysignins.microsoft.com and open the relevant sign-in attempt.
2. Check both successful and failed events around the time of the Oracle login.
3. Record:
   • Application name
   • Status and failure reason
   • Sign-in error code
   • Correlation ID
   • Date and time
4. Tell IT whether:
   • Microsoft authentication itself failed, or
   • Microsoft authentication completed and Oracle then displayed invalid user.

Also confirm the exact Oracle product and the enterprise-application name shown in Entra. “Oracle Fusion Hub” might not be the Oracle Fusion ERP gallery application, so the ERP-specific steps below apply only if that is the integration your organization uses.

An administrator can inspect the same event at Microsoft Entra admin center → Entra ID → Monitoring & health → Sign-in logs, filtering by your username and the actual Oracle application. Access to these logs requires at least the Reports Reader role.^1^

If Microsoft Entra rejected the sign-in

If the failure details indicate that assignment is required and you are not assigned, an authorized administrator should:

1. Open Entra ID → Enterprise apps → All applications.
2. Select the enterprise application actually used for Oracle.
3. Select Users and groups → Add user/group.
4. Select your account.
5. Select the appropriate application role.
6. Select Assign, then retry the login.^2^

If the error instead says that your account does not exist in the tenant, IT must verify that the correct work account and tenant are being used and, where applicable, add or invite the account to that tenant. Do not create another account unless your administrator directs you to do so.

If Entra succeeds but Oracle reports “invalid user”

This usually points to an Oracle-side account, attribute-linking, or SAML configuration problem rather than a Microsoft password issue.

If the application is confirmed as Oracle Fusion ERP, its administrator should verify that:

1. A corresponding Oracle Fusion ERP user has been created and activated.
2. The Oracle account is linked to the correct Microsoft Entra representation.
3. The user is assigned to Oracle Fusion ERP in Entra with a valid application-specific role. For automatic provisioning, users assigned only Default Access are excluded.^3^^4^

If the Oracle counterpart is missing or inactive, the Oracle administrator—or Oracle Fusion ERP support team—must create and activate it before SSO is retried.^3^

If your organization uses automatic SCIM provisioning, the administrator should additionally:

1. Open Entra ID → Enterprise apps → Oracle Fusion ERP → Provisioning.
2. Review the provisioning logs for your account.
3. Run on-demand provisioning for your user.
4. Confirm that required attributes are populated and that userName correctly matches the Oracle account.
5. Check that no scoping filter excludes the account.
6. If the log says the user is not effectively entitled, unassign and then reassign the user or applicable group.^4^^5^

If the account and assignment are correct, the SSO administrator should test the enterprise application and compare the configured Oracle Identifier (Entity ID), Reply URL, sign-on URL, and federation metadata with the Oracle tenant’s actual values.^3^

References

1. How to troubleshoot Microsoft Entra sign-in errors
2. Entra ID Enterprise app SSO login using guest account fails AADST550105 - Microsoft Q&A
3. Configure Oracle Fusion ERP for Single sign-on with Microsoft Entra ID
4. Configure Oracle Fusion ERP for automatic user provisioning with Microsoft Entra ID
5. Problem configuring user provisioning to a Microsoft Entra gallery application