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On this page
ERROR: 52107
Error - 52107
Invalid custom key for GCM/FCM
On this page
ERROR: 52107
Error - 52107
Invalid custom key for GCM/FCM
Invalid custom key for GCM/FCM
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ERROR: 52107
error-52107 page anchor
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NOTIFICATIONS
ERROR
Error - 52107
error---52107 page anchor
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Invalid custom key for GCM/FCM
invalid-custom-key-for-gcmfcm page anchor
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Possible Causes
possible-causes page anchor
You have specified an invalid key in the custom key-value pair section of the payload.
Possible Solutions
possible-solutions page anchor
GCM/FCM rejects some keys including from, gcm and anything prefixed by google. Make sure you are not using any of these keys.