Reply Options and Limitations in Community Messages
The following limits are set by individual platforms. The limits may change without prior warning.
Some characters are counted as 1 byte, some others are counted as 2 or more bytes. For example, "a" is counted as 1 byte, however "á" is counted as 2 bytes.
comment: 8 000 characters
direct message: 2 000 characters
Google Business
comment: 4 096 characters
comment: 2 200 characters
direct message: 1 000 bytes
comment: 3 000 characters
TikTok
comment: 150 bytes
YouTube
comment: 10 000 bytes
X (formerly Twitter)
comment: 280 characters
Be aware that special data counts towards the limits.direct message: 10 000 characters