Write HCM Employee to SAP Master Task Runs twice

We have IDM 7.1 SP3 implemented. It is used to create ids triggered by the RPLDAP_EXTRACT_IDM job that runs periodically in the HCM system. It has been running fine for the past year.

Now we would like to put a condtion on an attribute where we check for its value and in certain exception conditions the job stops and sends an email.

The issue is for every pernr on the first run the 'Write HCM Employee to SAP Master' task runs twice therefore sending the email twice. I am not sure where the setting is to fix this. But this happens on the first time the pernr is run, if I run the pernr again the task executes only once.

Any ideas. Your time is much appreciated.

Thanks

Shabna