odoo/odoo · error · ValidationError

Please set a strictly positive rounding value.

Error message

Please set a strictly positive rounding value.

What it means

Raised by the @api.constrains('rounding') validate_rounding on account.cash.rounding. The rounding field is the precision unit used by float_round, so it must be strictly greater than zero; zero or negative values would make rounding degenerate (or divide by zero in consumers) and are rejected.

Source

Thrown at addons/account/models/account_cash_rounding.py:49

        ondelete='restrict',
    )
    loss_account_id = fields.Many2one(
        'account.account',
        string='Loss Account',
        company_dependent=True,
        check_company=True,
        domain="[('account_type', 'not in', ('asset_receivable', 'liability_payable'))]",
        ondelete='restrict',
    )
    rounding_method = fields.Selection(string='Rounding Method', required=True,
        selection=[('UP', 'Up'), ('DOWN', 'Down'), ('HALF-UP', 'Nearest')],
        default='HALF-UP', help='The tie-breaking rule used for float rounding operations')

    @api.constrains('rounding')
    def validate_rounding(self):
        for record in self:
            if record.rounding <= 0:
                raise ValidationError(_("Please set a strictly positive rounding value."))

    def round(self, amount):
        """Compute the rounding on the amount passed as parameter.

        :param amount: the amount to round
        :return: the rounded amount depending the rounding value and the rounding method
        """
        return float_round(amount, precision_rounding=self.rounding, rounding_method=self.rounding_method)

    def compute_difference(self, currency, amount):
        """Compute the difference between the base_amount and the amount after rounding.
        For example, base_amount=23.91, after rounding=24.00, the result will be 0.09.

        :param currency: The currency.
        :param amount: The amount
        :return: round(difference)
        """
        amount = currency.round(amount)

View on GitHub (pinned to 1e661df964)

Solutions

1. Set a positive precision such as 0.05, 0.10, or 1.0 depending on the cash rounding rule you need.
2. Fix the import/source data to always supply a positive rounding value.
3. Guard in code: only create the rounding record when the parsed value > 0.

Example fix

# before
env['account.cash.rounding'].create({
    'name': ' Nickel rounding', 'rounding': 0.0, 'rounding_method': 'HALF-UP'})
# -> ValidationError

# after
env['account.cash.rounding'].create({
    'name': 'Nickel rounding', 'rounding': 0.05, 'rounding_method': 'HALF-UP'})

if not isinstance(rounding_value, (int, float)) or rounding_value <= 0:
    raise ValueError('cash rounding precision must be > 0')

from odoo.exceptions import ValidationError
try:
    env['account.cash.rounding'].create(vals)
except ValidationError as e:
    if 'strictly positive' in str(e):
        vals['rounding'] = 0.05  # sensible default, then retry
        env['account.cash.rounding'].create(vals)
    else:
        raise

When it happens

Trigger: Creating or writing an account.cash.rounding record with rounding <= 0 (0.0 or a negative number), e.g. create({'rounding': 0.0, 'rounding_method': 'HALF-UP'}).

Common situations: Importing rounding configurations where the precision column is empty and parsed as 0; UI form saved before filling the rounding value (rare, field defaults may be 0); tests creating placeholder rounding records.

Related errors

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• The journal item is not linked to the correct financial acco
• Only a report without a root report of its own can be select
• Incorrect fiscal year date: day is out of range for month. M
• At least one analytic account must be set

AI-assisted analysis of odoo/odoo@1e661df964 (2026-08-15). Data as JSON: /api/errors/f0597cebb533337a. Report an issue: GitHub.