---
page_type: error
code: 52101
message: "52101: Invalid GCM Api Key or FCM Secret"
level: ERROR
product: Notifications
---

## Error - 52101

### Invalid GCM Api Key or FCM Secret

#### Possible Causes

- The GCM API Key or FCM Secret provided is invalid.

#### Possible Solutions

- Provide a valid GCM API Key or FCM Secret