# Max body for a Note
**URL:** https://discuss.blues.com/t/max-body-for-a-note/3534
**Category:** Firmware
**Tags:** cellular-coverage
**Created:** [April 22, 2026, 10:27pm UTC](https://discuss.blues.com/t/max-body-for-a-note/3534 "2026-04-22T22:27:43Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@JacobDPoland](https://discuss.blues.com/u/JacobDPoland)
#### Post date: [April 22, 2026, 10:27pm UTC](https://discuss.blues.com/t/max-body-for-a-note/3534/1 "2026-04-22T22:27:43Z")
I’m wondering what is the maximum length of a body in a note? I noticed my uploads work with a body length of 972, but fail when I add one more sensor-worth of data. I am not sure what the body length of the failures are yet, but I can find out if that’s helpful.
---
### Author:  [@RobLauer](https://discuss.blues.com/u/RobLauer)
#### Post date: [April 27, 2026, 1:49pm UTC](https://discuss.blues.com/t/max-body-for-a-note/3534/2 "2026-04-27T13:49:21Z")
Hi @JacobDPoland and welcome to the Blues community!
972 bytes is not a massive `body` as far as the Notecard is concerned. My conservative guidance is to keep the total size less than 4KB for most scenarios. It certainly can depend on the radio you’re using and the quality of the network connection.
What’s the specific error message you’re getting?
Are you using [templated Notefiles](https://dev.blues.io/notecard/notecard-walkthrough/low-bandwidth-design/#working-with-note-templates)? If not, you really should as that will dramatically decrease the size of your Notes as sent over the wire.
Rob
---
### Author:  [@JacobDPoland](https://discuss.blues.com/u/JacobDPoland)
#### Post date: [June 24, 2026, 3:41pm UTC](https://discuss.blues.com/t/max-body-for-a-note/3534/3 "2026-06-24T15:41:21Z")
Hi Rob,
Thank you for your reply. It was helpful such that I realized the Blues Notecard was not my problem. I’m writing this now in case someone else encounters the same issue.
I believe my problem was fragmented heap on my Arduino Mega 2560. I worked around this by using fixed-length buffers instead of the J objects and functions. In the future, I’ll probably just use a microcontroller with more SRAM.
Best,
Jacob Poland