To ensure effective message delivery, please refer to the push message content limits of each channel when creating a message push task.
Android push channels
Push channel | Message title length limit | Message content length limit |
MPS channel | No length limit | No length limit |
Xiaomi | 50 characters. Each Chinese or English character counts as one character. | 128 characters. Each Chinese or English character counts as one character. |
Huawei | 40 characters. Each Chinese or English character counts as one character. | 1024 characters. Each Chinese or English character counts as one character. |
OPPO | 32 characters. Each Chinese or English character counts as one character. | 200 characters. Each Chinese or English character counts as one character. |
vivo | 20 Chinese characters (40 English characters). One Chinese character is counted as two English characters. | 50 Chinese characters (100 English characters). One Chinese character is counted as two English characters. |
Push notifications to vendor channels fail if the message exceeds the length limit.
Push notifications to vendor channels fail if the message title and content are empty.
The total message body size for all Android channels, including vendor and MPS proprietary channels, is limited to 2 KB.
iOS push channels
Push channel | Message title length limit | Message content length limit |
APNs | 20 Chinese characters (40 English characters). One Chinese character is counted as two English characters. Text that exceeds this limit is truncated with an ellipsis. |
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The total message body size for the iOS channel is limited to 2 KB.