General Journal Batch Approval Workflow not Adding Restriction while sent for Approval

Hi Guys

General Journal Batch Approval Workflow not Adding Restriction on the record after the user sent the payment journal for approval.

ex.the user made payment for vendor $100 and sent it for approval and but before the approver approved the journal a user can change the amount to $200.

Is that normal isn’t it suppose to be the record or journal line non editable?.like the sales document, i understand the difference between the journal and the document, but i think the record needs to be locked like sales document by common sense.

Tell me something from your experience.

Please identify Nav version and is the approval workflow has been created by using the existing templates and if yes then identify which one.