Search data by RUC
Whenever a customer requests an invoice with a RUC, the first step is to look up that RUC in the system.
This makes it possible to select from already registered customers, keep their purchase history, and, if the customer is new, automatically retrieve their tax information from the SET.
Searching by RUC saves time and avoids billing errors. A misspelled RUC or an incorrect business name can cause the invoice to be rejected by SIFEN.
Where you can search by RUC
RUC lookup is available in different parts of the platform:
New customer form
When creating a customer from the Customers module.
Customer selection in a sale or quote
When associating a customer during the sales process.
Customer editing
To verify or compare data against the SET information.
Correct RUC format
The Paraguayan RUC has the following format:
NUMBERS – CHECK DIGIT
Valid examples:
80012345-6
4567890-2
123456-1
The hyphen is mandatory. If it is not included, the search will not work correctly.
How RUC search works
When entering a RUC and clicking Search, Focal Point performs two automatic checks:
It searches your database for the RUC to check whether the customer is already registered.
If it does not exist, it queries the SET database and retrieves the business name and available tax information.
Possible search results
Depending on the result, the following situations may occur:
Valid RUC
The RUC is valid and the system automatically retrieves the business name and tax information from the SET.
Review the information, complete the remaining fields, and continue with the registration.
The RUC does not appear in the SET
The RUC is not found in the SET database.
Verify that it is written correctly and, if it is correct, enter the data manually.
RUC already registered
The system detects that the RUC already exists in your system.
In this case, do not continue with the registration and use the search tool to select the existing customer.
Common issues
The search returns no results
Check that the RUC includes the hyphen and check digit.
The retrieved data does not match the customer's data
In some cases, the SET information may be out of date. You can adjust it manually if necessary.
The customer already exists but you want to create a new one
Consider using the existing record so you do not lose history or duplicate information.
Recommendation
If you work with recurring customers, always request the RUC before invoicing.
Look it up in the system and, if it already exists, use that record. This reduces errors, keeps the full history, and speeds up the entire process.


