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Send an HTTP request to Sharepoint failing to recognise list name from variable

The errors from my flow are below. I can't seem to get it to recognise the variable calendar name to create the item

 The error details are:

"A type named 'SP.Data.CSIS CalendarListItem' could not be resolved by the model. When a model is available, each type name must resolve to a valid type.
clientRequestId: 2aac0d85-609c-4cce-8373-c380d7adb6db
serviceRequestId: 400919a0-60eb-3000-a02a-7dc3aa039719




Raw outputs are:

    "statusCode": 400,
    "headers": {
        "Pragma": "no-cache",
        "x-ms-request-id": "400919a0-60eb-3000-a02a-7dc3aa039719",
        "Strict-Transport-Security": "max-age=31536000; includeSubDomains",
        "X-Content-Type-Options": "nosniff",
        "X-Frame-Options": "DENY",
        "Cache-Control": "no-store, no-cache",
        "Set-Cookie": "ARRAffinity=9227faf24135ad53dd065beee547fecb0ff01774dd3486105eba5bed7b415073;Path=/;HttpOnly;Secure;,ARRAffinitySameSite=9227faf24135ad53dd065beee547fecb0ff01774dd3486105eba5bed7b415073;Path=/;HttpOnly;SameSite=None;Secure;",
        "Timing-Allow-Origin": "*",
        "x-ms-apihub-cached-response": "false",
        "Date": "Fri, 21 Jan 2022 20:49:59 GMT",
        "Content-Length": "519",
        "Content-Type": "application/json",
        "Expires": "-1"
    "body": {
        "status": 400,
        "message": "A type named 'SP.Data.CSIS CalendarListItem' could not be resolved by the model. When a model is available, each type name must resolve to a valid type.\r\nclientRequestId: 2aac0d85-609c-4cce-8373-c380d7adb6db\r\nserviceRequestId: 400919a0-60eb-3000-a02a-7dc3aa039719",
        "errors": [


Please help!



Super User
Super User

Hi @kelsodaws 


Just spotted this, did you resolve?  I wonder if it is the space in the list name?


A type named 'SP.Data.CSIS CalendarListItem' could not be resolved by the model.


Try CSI%20CalendarListItem in the body



Hi, thanks for the response. Yes have resolved it. The space was the issue but replacing it did not solve it, i had to remove the space altogether for it to be recognized.


Now onto the next issue - do you know if you can add attachments using the same POST request? As i do not know the item ID i cannot add afterwards either?

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