HTTP 400 · Bad Request
HTTP 400 Flood / Rate limits

When & why it happens

Slowmode is enabled, you cannot forward multiple messages to this group. Treated by gogram as a regular API error; inspect ErrResponseCode.Message for the exact code.

Handling in gogram

Surfaced as *gogram.ErrResponseCode. Match on the message:

if err, ok := err.(*gogram.ErrResponseCode); ok { if err.Message == "SLOWMODE_MULTI_MSGS_DISABLED" { // handle this error } }