```javascript
WXAPI.goodsLimitationsV2(goodsId, propertyChildIds)
```
+ goodsId item number
+ propertyChildIds passes the sku information of the product (if there is no sku product, this parameter does not need to be passed);Selected specification size information: such as: 4:15, 2:10, 1:4, . Please separate multiple specifications with commas in English. The 4 in 4:15 represents the color, and the 15 may represent local gold.```json
{
"code": 0,
"data": [
{
"buyNumbers": 1,
"duration": 2,
"goodsId": 4232,
"id": 2096,
"unit": 0,
"unitStr": "Natural day",
"userId": 951,
"userLevelId": 3117,
"userLevelName": "Gold Member"
},
{
"buyNumbers": 1,
"duration": 3,
"goodsId": 4232,
"id": 2095,
"unit": 1,
"unitStr": "Natural month",
"userId": 951,
"userLevelId": 0,
"userLevelName": "User without group"
}
],
"msg": "success"
}
```
+ userLevelId is the effective user level id, 0 represents a user without membership level
+ unit is a purchase-limited unit. For details, see unitStr. It is divided into natural days, months, and years.
+ duration buying cycle
+ buyNumbers limits the maximum number of purchases
In the above example, the product settings are interpreted as:
+ Users without membership level can purchase up to 1 item every 3 months
+ Gold member users can purchase up to 1 item every 2 days