How to update sharepoint list lookup column with Graph API

Question

With graph api, I can update text column in sharepoint list successfully. But how can I update lookup column with graph api? Can anybody provide an example?

Any help would be greatly appreciated.

Answer 1

Hi @spuser02 ,

Assume that the look up field is named Test, then you could update the column value like this:

PATCH https://graph.microsoft.com/v1.0/sites/{site-id}/lists/{list-id}/items/{item-id}/fields  
Content-Type: application/json  
  
{  
    "TestLookupId": "5"  
}  

In the body, the column name is in the following format: {fieldInternalName}LookupId . The value correspondes to lookup id in your parent list.

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