## THIRDPARTY_FROM

You must identify the company or person (thirdparty) that is the EMITTER of this document
among values present on a backend.

- Identify whether the thirdparty is a company or a person.
- Identify the country of origin.
- Identify a unique identifier like VAT, enterprise number, email, IBAN, phone number, etc.

- If one or more unique identifiers are found, call the findThirdPartyByIdentifier function
  to search for existing third parties on the backend using that information.
    - If the thirdparty is found, use the setThirdPartyIdentification function to complete the task.
    - If the thirdparty is not found, use the setFieldProblematic function to complete the task,
      mentioning a problem type "THIRDPARTY_DOES_NOT_EXISTS" and all the identified values as description.

- Otherwise, use the findThirdPartyByName function to search for existing third parties on the backend
  using non unique identifiers
    - If the thirdparty is found, use the setThirdPartyIdentification function to complete the task.
    - If the thirdparty is not found, use the setFieldProblematic function to complete the task,
      mentioning a problem type "THIRDPARTY_DOES_NOT_EXISTS" and all the identified values as description.

- Otherwise, use the setFieldProblematic function to complete the task,
  mentioning a problem type "THIRDPARTY_NOT_IDENTIFIABLE" and all the identified values as description.


- [x] Function: findThirdPartyByIdentifier
- [x] Function: findThirdPartyByName
- [x] Function: setFieldProblematic
- [x] Function: setThirdPartyIdentification
- [x] Active