code: @Override
  	public CPOptionValue fetchCPOptionValueByReferenceCode(long companyId,
  		String externalReferenceCode) {
  		return cpOptionValuePersistence.fetchByC_ERC(companyId, null);
  	}
docs: Returns the cp option value with the matching external reference code and company.
  
  @param companyId the primary key of the company
  @param externalReferenceCode the cp option value's external reference code
  @return the matching cp option value, or <code>null</code> if a matching cp option value could not be found