Folio Number Assignment: CL, CR, GT, MX 
The following information is only relevant for Chile, Costa Rica, Guatemala, and Mexico.
Use this function to create legal documents such as invoices and credit memos that include the fiscal document number known as Folio.
Documents created with a Folio number have two numbers:
The internal number defined in document numbering (see
Administration 
System Initialization Document Numbering 
)The Folio number that you can define using this function or when you create the document.
Prerequisites
Folio numbering has been activated on the Basic Initialization tab at Administration System Initialization Company Details .
Note
For the Mexican and the Chilean localization, the folio numbering function is always activated.
For the Costa Rican and the Guatemalan localization, activating folio numbering is only possible for new installations of SAP Business One.