at your earliest convenience
US /æt jʊər ˈɜrliɪst kənˈviːniəns/
UK /æt jʊər ˈɜrliɪst kənˈviːniəns/

1.
dès que possible, à votre meilleure convenance
as soon as you can; as soon as it is convenient for you
:
•
Please reply to this email at your earliest convenience.
Veuillez répondre à cet e-mail dès que possible.
•
We would appreciate it if you could send the documents at your earliest convenience.
Nous vous serions reconnaissants de bien vouloir envoyer les documents dès que possible.