What is the Character Limit for Message text in Firebase console based notification?

Firebase uses GCM for message transport. Based on the following references

  1. GCM Size Limit = 2KB (here)
  2. From FIrebase documentation size limit = 4KB (here)

Anyway if we are considering a 2KB payload size. it will come around 2000 characters.

remember to keep the message size low as much as possible.

UPDATE

The console will allow maximum of 1000 characters


As of today (1st Apr 2020)

Firebase console only allowing 1000 characters in the notification body:

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