その内容や明細が無いあるいは不明な場合が多く、売掛債権との紐付けに困難

その内容や明細が無いあるいは不明な場合が多く、売掛債権との紐付けに困難が生じている。

Results (English) 1:

No content or description or if you are unsure, have difficulty in linking and accounts receivable.

Results (English) 2:

In many cases the content or item or unknown no difficulty occurs in the linking of the accounts receivable.

Results (English) 3:

And in many cases there is no details are unknown or a tie-up with account receivable has been difficult.