Expenditure ID Doesn't Exist and A Job isn't define for the Person Assignment

Summary:

Error while submitting expense report, it contains five error messages such as;

Expenditure ID Doesn't Exist

A Job isn't define for the Person Assignment

The Person Type can't be derived

HR assignment doesn't exist.

You must provide expenditure organization.

Content (please ensure you mask any confidential information):

Hi,

Kindly help to advise if you encounter the error below while submitting an Expense Report.

Expenditure ID Doesn't Exist

A Job isn't define for the Person Assignment

The Person Type can't be derived

HR assignment doesn't exist.

You must provide expenditure organization.

What I noticed is that the default Legal Employer of the user is not the correct mapping of Business Unit assigned to user.