Hi Sam,
You are welcome Sam.
Let me understand your requirement clearly. What is the exact requirement, please elaborate.
The document type that we maintain is the Accounting Document Type. This depends on the scenario in which you are working on. For example: In a norma sales invoice scenario the standard Accounting document type is "R1".
Please note for the official document numbering - Business Place is the functionality that SAP has to offer us as standard.
Though all the config settings are not available under one Country node in SPRO, still you can get in to other country nodes and maintain the confuig settings specific to your country Peru.
Please let me know for any further clarification.
Regards