An allowance requires exactly one indicator

Error FX-SCH-A-000543 Factur-X

Element 'ram:ChargeIndicator' must occur exactly 1 times.

Mandatory rule: As long as it is violated, the invoice is invalid and will be rejected by validators.
What is wrong

The allowance does not contain exactly one ram:ChargeIndicator. The rule checks the number of these elements within ram:SpecifiedTradeAllowanceCharge.

What the rule means

ram:ChargeIndicator indicates whether the amount is an allowance or a charge. This allowance must contain the indicator exactly once.

Please include exactly one `ram:ChargeIndicator` for the allowance

The allowance on the invoice line does not contain exactly one indicator. You can adjust the number of indicator elements in the allowance.

What to do
  1. Locate the relevant ram:SpecifiedTradeAllowanceCharge on the invoice line.
  2. Ensure it contains exactly one ram:ChargeIndicator with the value false.
  3. Generate the invoice again and validate it once more.
What it looks like
✗ Triggers the message 
<ram:SpecifiedTradeAllowanceCharge>
  <ram:ChargeIndicator>
    <udt:Indicator>false</udt:Indicator>
  </ram:ChargeIndicator>
  <ram:ChargeIndicator>
    <udt:Indicator>false</udt:Indicator>
  </ram:ChargeIndicator>
</ram:SpecifiedTradeAllowanceCharge>
✓ Correct 
<ram:SpecifiedTradeAllowanceCharge>
  <ram:ChargeIndicator>
    <udt:Indicator>false</udt:Indicator>
  </ram:ChargeIndicator>
</ram:SpecifiedTradeAllowanceCharge>
Technical details

The test counts the direct ram:ChargeIndicator elements in ram:SpecifiedTradeAllowanceCharge and requires a count of 1.

Where the rule applies

The rule applies to an allowance on an invoice line whose ram:ChargeIndicator has the value false.

Context (rule/@context)
/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:IncludedSupplyChainTradeLineItem/ ram:SpecifiedLineTradeSettlement/ram:SpecifiedTradeAllowanceCharge[ram:ChargeIndicator/ udt:Indicator="false"]
Test expression (assert/@test)
count(ram:ChargeIndicator)=1