The following records failed to import, they either already exist or are missing required fields

Self-Hosted | v5
1

Importing data from Wave shows an error The following records failed to import, they either already exist or are missing required fields. how do I fix this issue. i just selected all Fields.
Customer Name
Customer Account Number
Invoice Number
Invoice Date
Currency
PO Number
Exchange Rate
Invoice Total
Invoice Tax Total
Invoice Paid
Invoice Due
Due Date
Last Payment Date
Status
Memo
Disable Card Payments
Disable Amex Payments
Disable Bank Payments
Readonly (Customer) Link
PDF Download Link

2

Hi,

The error usually means either the client wasn’t found in the system or the invoice number is already in use.