"As long as you have been issued an mnp number, you can do it."
"As long as you have been issued an mnp number, you can do it."
"as long as ~" 「〜さえすれば」
"you have been issued ~" 「〜発行してもらえた」
"an mnp number" 「mnp番号」
"you can do it" 「〜できる」
[さえすれば](https://eikaiwa.dmm.com/uknow/questions/66757/)についてもっと詳しく知りたい方はクリックしてください。
As long as you've been issued an MNP number, then it will be possible to do so.
ご質問ありがとうございます。
このシチュエーションでで「mnp[番号](https://eikaiwa.dmm.com/uknow/questions/66661/)さえ発行してもらえれば手続きはできます」と言いたいなら、英語で「As long as you've been issued an MNP number, then it will be possible to do so.」と言えます。
ご参考になれば幸いです。