> For the complete documentation index, see [llms.txt](https://guides.clickatell.com/release-notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guides.clickatell.com/release-notes/release-notes-archive/2025-release-notes/q2-2025/other-enhancements-and-improvements.md).

# Other Enhancements & Improvements

**SMS:** Daily Sandbox testing limits reduced on MC2

* The number of daily and monthly free SMS messages available for Sandbox testing on MC2 has been reduced.
* The number of free **SMS** messages per account is now limited to **10** (ten) per day with an overall maximum of **100** (one hundred) per month.
* Note that WhatsApp Sandbox testing limits remain unchanged at 100 (one hundred) per day with an overall maximum of 1000 (one thousand) per month.