Activity Key Fields
The fields listed in the 'head/appointments/keys' form a composite key that is used to determine, whether an activity exists in OFSC and should be processed, or whether it does not exist and a new activity should be created and then processed. Therefore, these fields must be present and non-empty for every activity in the transaction, otherwise the activity will be rejected. The valid values of 'appointment/keys' are 'appt_number', 'customer_number' and 'name'.
'head/appointment/keys' structure example
<appointment>
<keys>
<field>appt_number</field>
<field>customer_number</field>
</keys>
<appointment>