3453802 - "The application you are trying to delete is used as parent application and cannot be deleted." when trying to delete trust in a subaccount

When trying to delete the trust to an Identity Authentication tenant in a Cloud Foundry subaccount, the following error message appears:

Unable to update Trust Configuration "<origin>". Bad request.- Please reference the correlation ID <correlation> in the support ticketError while updating IAS tenant: 400 Bad Request: "\{"error":"Error during communication with IAS. Error was: 400 : \"\{ \"error\" : \{ \"code\" : 400, \"message\" : \"Invalid user input.\", \"details\" : [ \{ \"message\" : \"The application you are trying to delete is used as parent application and cannot be deleted.\" } ] }}\". Incoming request DELETE, /trust/<id>/<tenant>.accounts.ondemand.com/<id>/<id>","uri":"/trust/<id>/<tenant>.accounts.ondemand.com/<id>/<id>"}"

• SAP BTP, Cloud Foundry environment
• Identity Authentication

ias, identity authentication, unable to update trust, bad request, please reference the correlation id, while updating ias tenant, 400 bad request, error during communication with ias, the application you are trying to delete is used as parent application and cannot be deleted, incoming request delete , KBA , BC-CP-CF-SEC-IAM , UAA, Authentication, Authorization, Trust Mgmnt , BC-IAM-IDS , Identity Authentication Service , Problem