# wx.setUserCloudStorage(Object object)
Start from base library version 1.9.92. Please remaining backward compatible.
Writes data to the user's hosted data. Multiple sets of KV data can be written at a time.
# Parameters
# Object object
| Attribute | Type | Default | Required | Description |
|---|---|---|---|---|
| KVDataList | Array.<KVData> | Yes | The list of KV data to be modified | |
| success | function | No | The callback function for a successful API call | |
| fail | function | No | Callback function for failed API call | |
| complete | function | No | Callback function used when API call completed (always executed whether call succeeds or fails) |
# Limits on Hosted Data
- The WeChat users identified by the OpenIds cannot have hosted data in excess of 128 key-value pairs in each game.
- No item in the key-value list can have a key+value length in excess of 1024 bytes.
- No item in the key-value list can have a key length in excess of 128 bytes.