Appendix : Editing Trust Relationship After Regenerating External ID

Perform the following steps to edit the trust relationship after regenerating the external ID:

Run the ‘Update an Integration’ API with the ‘regenerateExternalId’ field set to true. Note down the externalId received in the API Response.
Go to AWS IAM Console > Roles.
Open the role for which the externalId is changed.
Under Trust Relationships, click Edit trust policy, update the ‘sts: ExternalId’ field, and click Update policy.
Run the Validate Integration API to validate the integration.

Appendix: Editing Trust Relationship After Regenerating External ID