Create site is failing using REST API - Inconsistent behavior

Question

REST Endpoint: http://<sp>/_api/web/webs/add

We are getting the below error randomly while creating a site.

Error:
error : {"error_message":{"response_code":500,"code":0,"message":"400 - A required parameter is not specified or has null or invalid value.{\"odata.error\":{\"code\":\"-2147024809, System.ArgumentException\",\"message\":{\"lang\":\"en-US\",\"value\":\"Value does not fall within the expected range.\"}}}}}

Answer 1

Hi @Abdul Saif Babu ,

I'm creating the sub site using "/_api/web/webinfos/add":

Uri: {rootsite}/_api/web/webinfos/add  
Method: POST  
Header: {content-type:'application/json;odata=verbose'}  
Body:{  
   "parameters":{  
      "__metadata":{  
         "type":"SP.WebInfoCreationInformation"  
      },  
      "Url":"NewSubSite",  
      "Description":"NewSubSite description",  
      "Title":"NewSubSite Site",  
      "Language":1033,  
      "WebTemplate":"STS#0",  
      "UseUniquePermissions":true  
   }  
}  

Reference:

Create Sub Site in SharePoint using REST API

Thanks
Best Regards

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Answer 2

Hi @Jerryzy-MSFT ,

we have implemented this, as this is inconsistent , we need to test more this, will update