What is the small whitish square sticker on back of s9

[Android Central Question]

Can I remove it.

 

[Rukbat]

Does it have any information on it?

 

[illdini]

It's just the IMEI & the SKU for your phone (that's what it is on mine). It can be removed, that information can be found on the box your phone came with and (at least the IMEI) in the phone Settings.