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  2. UBL Invoice
  3. ubl:Invoice
  4. cac:InvoiceLine
  5. cac:Price
  6. cac:AllowanceCharge
  7. cbc:BaseAmount

cbc:BaseAmount

The unit price, exclusive of VAT, before subtracting Item price discount, can not be negative

Cardinality
0..1
Namespace
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2
Data type
Amount
Example value
123.45
Business terms
BT-148
Attributes
Use Name Description
M @currencyID

Mandatory attribute. Use BT-5

Example value: EUR

Rules
Identifier/Error message Flag
BR-28
The Item gross price (BT-148) shall NOT be negative.		 fatal
BR-CL-03
currencyID MUST be coded using ISO code list 4217 alpha-3		 fatal