Expense reports triggered for payment even though the mandatory fields not specified

Summary:

We had configured - In the expense template, both Description and Merchant fields are configured as mandatory.
At the expense type level, these fields are set to “Use as per Template.”
However, at the item level, Description is marked as optional and Merchant as mandatory.

While creating the expense report, the system throws a “Missing Required Fields” error if Description is not entered, even when the Merchant name is provided.
Conversely, when Description is entered but the Merchant name is left blank, the report gets submitted for approval without any error.

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