Unable to import expense reports with voucher number from other system. We want to keep the Sequenti

Hi Experts,

We are unable to import expense reports with voucher number from other system. We want to keep the Sequential Numbering profile option as 'Always Used' or 'Partially Used' because we want to use document sequencing for other Invoice Types (Credit Memo/Debit Memo/ Prepayment).

Allow Document Category Override enabled. Sequence Assignment for the Expense Report Invoices end dated. Same sequence is assigned to all the Categories (Check Payments,Credit Memo Invoices,Debit Memo Invoices).

While populating data in the payables interface table we are populating Voucher Numbers (generated in other system) and not populating any Document Category.

But when we run the program it gives the error '