Solved, how do I add a cart transformation function to my store via Graphql mutation

[fwallace]

Here is the mutation:

mutation { 
  cartTransformCreate( 
    blockOnFailure: true,
    functionId: "<YOUR ID HERE>" 
    
  )  {
     
     userErrors {
      field
      message
     }
  }
  
  
}

Hope this helps

[Nick_Wesselman]

For others , here's the relevant API Documentation.