As of May 1, billers must do so as indicated in Annex 1.9 of Resolution 165 of 2023. If you need to express the sale in other languages or currencies in addition to the official ones, you may do so in the indicated fields of the XML format of the invoice. See the unified concept on electronic invoicing.
https://normograma.dian.gov.co/dian/compilacion/docs/oficio_dian_1509_2024.htm
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