Japanese phrase
連絡先が変わったら教えてください。 ren raku saki ga ka wa tta ra oshi e te ku da sa i
Meaning
Please let me know if your contact information changes.
When to use it
Asks someone to report a change in contact details. It is a polite request used when staying in touch matters.
Example dialogue
来月、引っ越します。 rai getsu hi kko shi ma su
I am moving next month.
連絡先が変わったら教えてください。 ren raku saki ga ka wa tta ra oshi e te ku da sa i
Please let me know if your contact information changes.