Improved Validation Messaging for Mandatory Descriptive Flexfields (DFF) in Expense Items

Summary:
Request to enhance validation behavior for mandatory Descriptive Flexfields on the Expense Item page to display user-friendly, field-specific error messages during the expense submission process when required fields are left blank.

Business Need: Our organization utilizes DFFs on the Expense Item form in Oracle Cloud Expenses to capture additional, business-critical information (Supplier Name, Project Code etc.). Some of these DFFs are set as mandatory, either through segment configuration or conditional logic in Page Composer.

Currently, when users attempt to submit an expense without populating required DFFs, no specific error or validation message is shown. As a result:
-Submissions proceed without essential data.