Invoice Approval Error

Summary: Invoice Approval error is going into error with error reason as -

Error either due to insufficient privilege to execute web service or deployment issues with the web service.

Content (please ensure you mask any confidential information):

We have few Invoice Approvals(which are importing from file based integration) which are going into error with error as

User does not have privilege to execute web service or there are deployment issues with the web service.

Diagnostic log shows below

fault

Name: {{http://schemas.oracle.com/bpel/extension}remoteFault}

messageType: {{http://schemas.oracle.com/bpel/extension}RuntimeFaultMessage}
parts: {{
summary=<summary>