I'm creating some custom script in Zoho Flow to associate the Zoho Projects Client Company. I've got the find piece of the code working but I want to update the found record with the CRM ID

Here is my code

1. string ZP_getClientID(string varClientName, string varCRMID)
   {
   response = invokeurl
   [
       url :"https://projectsapi.zoho.eu/restapi/portal/MYPORTAL/clients/"
       type :GET
       connection:"MY CONNECTION"
   ];
   // Change the response to a map to extract specific information
   varClients = response.get("clients");
   //
   // iterate the list of clients to match the CRM Account ID
   for each  varRecord in varClients
   {
       clientanme = varRecord.getJSON("name");
       if(clientanme = varClientName)
       {
                primaryclientid = varRecord.get("id");
       }
   }
   //Update the CRM ID in projects
   crmInfo = Map();
   crmInfo.put("crm_account_id",varCRMID);
   updateresponse = invokeurl
   [
       url :"https://projectsapi.zoho.eu/restapi/portal/MYPORTAL/projects/91102000002038530/clients/"
       type :POST
       parameters:crmInfo
       connection:"MY CONNECTION"
   ];
   info updateresponse;
   return primaryclientid;
   }
   

Where the record I am trying to update looks like this :

1. {
2.     "clients": [
3.         {
4.             "crm_account_id": "",
5.             "name": "My Customer Name",
6.             "id": 91102000005162221
7.         }
8.     ]
9. }
   

I'm just getting error

{
   error : {
      code : 6831,
      message : "Input Parameter Missing"
   }
}