# Post-Sales service

<div align="left"><img src="https://1165931685-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUbDQx7leHsTF4wXWth5S%2Fuploads%2Fgit-blob-3030b66d9131d47e8ff8bb27fd8589ffacb979e6%2Ftips.png?alt=media" alt="" width="169"></div>

After you add, replace, or remove devices (such as batteries, EVDC, and EVAC), you must use this function to finally confirm your operations.

<figure><img src="https://1165931685-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUbDQx7leHsTF4wXWth5S%2Fuploads%2Fgit-blob-5d30bb9e92615466389ee026055007460dc6953f%2FMSA1CM00078-%E5%94%AE%E5%90%8E%E6%9C%8D%E5%8A%A1%20(2).png?alt=media" alt=""><figcaption></figcaption></figure>
