Rate in Purchase Order is always validated against Supplier Quotation

Hello everybody,

we currently face a very specific problem:

If we buy parts for our production we usually start with a Supplier Quotation to ask our suppliers for current prices. The requested articles in the items table are provided with expected item prices which are based on pricing rules we have in the system.
However, if prices have changed, our supplier will send us an offer with different prices. If we choose “Make -> Purchase Order” to create a new PO and try to change the prices in the items table we get validation errors trying to save the document.

The error message says "Incorrect value in row 1: Rate must be = ..."

By the way, the checkbox for “Maintain same rate throu…” in the settings is disabled.

Traceback (most recent call last):
  File "/home/frappe/frappe-bench/apps/frappe/frappe/app.py", line 56, in application
    response = frappe.handler.handle()
  File "/home/frappe/frappe-bench/apps/frappe/frappe/handler.py", line 21, in handle
    data = execute_cmd(cmd)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/handler.py", line 52, in execute_cmd
    return frappe.call(method, **frappe.form_dict)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/__init__.py", line 922, in call
    return fn(*args, **newargs)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/desk/form/save.py", line 22, in savedocs
    doc.save()
  File "/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py", line 230, in save
    return self._save(*args, **kwargs)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py", line 253, in _save
    self.insert()
  File "/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py", line 192, in insert
    self.run_before_save_methods()
  File "/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py", line 772, in run_before_save_methods
    self.run_method("validate")
  File "/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py", line 666, in run_method
    out = Document.hook(fn)(self, *args, **kwargs)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py", line 887, in composer
    return composed(self, method, *args, **kwargs)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py", line 870, in runner
    add_to_return_value(self, fn(self, *args, **kwargs))
  File "/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py", line 660, in <lambda>
    fn = lambda self, *args, **kwargs: getattr(self, method)(*args, **kwargs)
  File "/home/frappe/frappe-bench/apps/erpnext/erpnext/buying/doctype/purchase_order/purchase_order.py", line 50, in validate
    self.validate_with_previous_doc()
  File "/home/frappe/frappe-bench/apps/erpnext/erpnext/buying/doctype/purchase_order/purchase_order.py", line 66, in validate_with_previous_doc
    "is_child_table": True
  File "/home/frappe/frappe-bench/apps/erpnext/erpnext/utilities/transaction_base.py", line 77, in validate_with_previous_doc
    self.compare_values({key: [ref_dn]}, val["compare_fields"], d)
  File "/home/frappe/frappe-bench/apps/erpnext/erpnext/utilities/transaction_base.py", line 100, in compare_values
    self.validate_value(field, condition, prevdoc_values[field], doc)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/model/document.py", line 924, in validate_value
    msgprint(msg, raise_exception=raise_exception or True)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/__init__.py", line 309, in msgprint
    _raise_exception()
  File "/home/frappe/frappe-bench/apps/frappe/frappe/__init__.py", line 284, in _raise_exception
    raise ValidationError(encode(msg))
ValidationError: Incorrect value in row 1: Rate must be = 0.1115
1 Like

Please create a github issue for this.

I’m also experiencing this and i hope it gets resolved. My work around is to cancel and amend the Supplier Quotation and edit my Standard Buying rates before submitting. Doing this i would not get the error message during Purchase Order.