Japanese phrase
___はいつまで保管されますか？ ___ wa i tsu ma de ho kan sa re ma su ka
Meaning
What is the retention period for ___?
When to use it
Asks for the time limit on keeping something. This businesslike wording focuses on the rule for storing documents and other records.
Example dialogue
請求書はいつまで保管されますか？ sei kyū sho wa i tsu ma de ho kan sa re ma su ka
What is the retention period for invoices?
7年間です。 7 nen kan de su
Seven years.