For work on tickets, you must indicate idWorkElement.

It doesn't work neither with idworkelement, nor with workelement. I got the same message.

What value should I put as workelement id, if I want to create a new real work?

resource;project;type of item;element id;work;date;idWorkElement
User;Project;Ticket;208;0.06;2020-02-03;

I think Work-->saveWork() doesn't handle this scenario. I mean adding new real work to a new ticket.

I am not sure what I have done doesn't make planning(calculating remaining work) wrong, but I added a few lines of code to saveWork to handle adding real work to a ticket, see below. I am also not sure if updateAssignment needs to be changed as well or not. Sorry if I am on the wrong track.

public function saveWork() {
    if ($this->id) { // update existing work
      $old=$this->getOld();
      $result=$this->save();
      $this->updateAssignment($this->work-$old->work);
      return $result;
    } else { // add new work
      if (! $this->idResource and ! $this->idAssignment) { // idResource Mandatory
        return "ERROR idResouce mandatory";
      }
      if (! $this->workDate) { 
        if ($this->day) {
          $this->workDate=substr($this->day,0,4).'-'.substr($this->day,4,2).'-'.substr($this->day,6,2);
        } else { // Work Date is mandatory
          return "ERROR workDate mandatory";
        }
      }
      if (!$this->idAssignment) { // unknown assignment
        if ($this->refType and $this->refId) {
          $crit=array('refType'=>$this->refType,'refId'=>$this->refId,'idResource'=>$this->idResource);
          $ass=SqlElement::getSingleSqlElementFromCriteria('Assignment', $crit);
          if ($ass->id) {
            $this->idAssignment=$ass->id;
          } else {
			$crit=array('refType'=>$this->refType,'refId'=>$this->refId);
            $tick=SqlElement::getSingleSqlElementFromCriteria('WorkElement', $crit);
			if ($tick->id) {
				$this->idWorkElement=$tick->id;
			} else {
				return "ERROR either idAssignment or idWorkElement is mandatory"; // could not retrieve assignment, so is mandatory
			}
          }
        }
      } else { // refType & refId can be retreived from assignment
        $ass=new Assignment($this->idAssignment);
        $this->refType=$ass->refType;
        $this->refId=$ass->refId;
        $this->idResource=$ass->idResource;
      }
	  if ($this->idAssignment) {
		  $crit=array('idAssignment'=>$this->idAssignment,'workDate'=>$this->workDate); // retreive work for this assignment & day (assignment includes resource)
		  $work=SqlElement::getSingleSqlElementFromCriteria('Work', $crit);
	  }
	  else {
		  $crit=array('idWorkElement'=>$this->idWorkElement,'workDate'=>$this->workDate); // retreive work for this assignment & day (assignment includes resource)
		  $work=SqlElement::getSingleSqlElementFromCriteria('Work', $crit);
	  }
      if ($work->id) {
        $work->work+=$this->work;
        $result=$work->save();
        $work->updateAssignment($this->work);
        return $result;
      } else {
        $this->setDates($this->workDate);
        $result=$this->save();
        $work->updateAssignment($this->work);
        return $result;
      }
    }
  }

Hi,
Thanks for pointing out the issue and proposing a solution.
We'll include your proposal (with minor changes) to next patch.