What to do if you uninstall the module

Uninstalling the module deletes all data (including invoices) and configuration. We recommend making a dump of the database tables before this operation:

pshow_ie_invoice
pshow_ie_invoice_corrective
pshow_ie_invoice_corrective_detail
pshow_ie_invoice_detail
pshow_ie_invoice_procedure
pshow_ie_invoice_refund
pshow_ie_invoice_refund_detail
pshow_ie_invoice_type
pshow_ie_order_detail
pshow_ie_product_code

This way you will be able to restore all invoices at any time. Just upload the above tables back into the database. In the future we will provide you with a tool for backing up data and an importer adapted for this purpose.