[BUG]: When Using the return Function while Rounding is Enabled Gives an error.

[SofianSaleh]

Versions

• Frappe: v14.62.1
• Erpnext: v14.58.1
• POS Awesome: 6.1.3

Stacktrace / full error message

File "apps/frappe/frappe/app.py", line 95, in application
    response = frappe.api.handle()
  File "apps/frappe/frappe/api.py", line 55, in handle
    return frappe.handler.handle()
  File "apps/frappe/frappe/handler.py", line 47, in handle
    data = execute_cmd(cmd)
  File "apps/frappe/frappe/handler.py", line 85, in execute_cmd
    return frappe.call(method, **frappe.form_dict)
  File "apps/frappe/frappe/__init__.py", line 1628, in call
    return fn(*args, **newargs)
  File "apps/posawesome/posawesome/posawesome/api/posapp.py", line 555, in update_invoice
    invoice_doc.save()
  File "apps/frappe/frappe/model/document.py", line 309, in save
    return self._save(*args, **kwargs)
  File "apps/frappe/frappe/model/document.py", line 331, in _save
    return self.insert()
  File "apps/frappe/frappe/model/document.py", line 262, in insert
    self.run_before_save_methods()
  File "apps/frappe/frappe/model/document.py", line 1058, in run_before_save_methods
    self.run_method("validate")
  File "apps/frappe/frappe/model/document.py", line 922, in run_method
    out = Document.hook(fn)(self, *args, **kwargs)
  File "apps/frappe/frappe/model/document.py", line 1284, in composer
    return composed(self, method, *args, **kwargs)
  File "apps/frappe/frappe/model/document.py", line 1266, in runner
    add_to_return_value(self, fn(self, *args, **kwargs))
  File "apps/frappe/frappe/model/document.py", line 919, in fn
    return method_object(*args, **kwargs)
  File "apps/erpnext/erpnext/accounts/doctype/sales_invoice/sales_invoice.py", line 118, in validate
    self.validate_pos()
  File "apps/erpnext/erpnext/accounts/doctype/sales_invoice/sales_invoice.py", line 812, in validate_pos
    frappe.throw(_("Paid amount + Write Off Amount can not be greater than Grand Total"))
  File "apps/frappe/frappe/__init__.py", line 540, in throw
    msgprint(
  File "apps/frappe/frappe/__init__.py", line 508, in msgprint
    _raise_exception()
  File "apps/frappe/frappe/__init__.py", line 454, in _raise_exception
    raise raise_exception(msg)
frappe.exceptions.ValidationError: Paid amount + Write Off Amount can not be greater than Grand Total

Steps to reproduce

1. Open posawesome, and create a new offer in which the total is i.e.(146.63) the rounding system will change it to (146.50), "in my case I created an item with UOM of (Kg) and the item Price of (110) and the Qty (1.333).

3. After creating the sales invoice, Press the return button find the invoice that has been created and select it. 5. now when pressing the pay button an error occurs, "Paid amount + Write Off Amount can not be greater than Grand Total".

What is Expected?

The Expected behaviour is that when the pay button is pressed, you can return the invoice and change the status of the original invoice to "Credit Note Issued".

What is actually happening?

An error Occures "Paid amount + Write Off Amount can not be greater than Grand Total"

Screenshots