Your customers' data changes: a new email / an updated phone number / or a company name that was entered incorrectly and is causing rejections in SIFEN. Editing a customer takes seconds, and the changes are applied throughout the system immediately.
The important thing: purchase history and invoices already issued are not touched. Changes only affect future transactions.
Finding the customer
From the Customers module, use the search box. You can search by:
Name or legal name
RUC
Email
Phone
Accessing edit mode
You have two ways:
From the list — Click the three-dot icon (⋮) and select Edit.
From the detail page — Open the customer and press the Edit button.
Updating the data
The form opens with the current data. Change only what you need.
Important considerations
RUC — If you change it, the previous purchase history remains associated. No information is lost.
Legal Name — Make sure it matches the SET record exactly if you issue electronic invoices.
Email — If you change it, the next documents will be sent to the new email.
Saving the changes
Click Save. The changes are applied immediately:
Future sales use the new data
Reports show the updated information
New invoices are issued with the corrected data
Invoices already issued are NOT modified. Only new ones use the updated data.
Special cases
The customer changed their RUC
This happens when a company is restructured. You can update the existing RUC (keeps a unified history) or create a new customer (if you need to separate the history before/after the change).
The customer has invoices with incorrect data
Invoices already issued cannot be modified because they are legal documents. What you can do: issue a credit note to cancel the incorrect invoice / correct the customer data / issue a new invoice with the correct data.
