Since version 5.171.9700, it is possible to link the availability of replacement cars in Plan-IT Workshop to the Plan-IT Online on time module. When making an appointment, customers can then see which replacement cars are available on the selected day when selecting one.
Follow the below steps to configure this.
First modify the settings for the online module to make the replacement transport available for the online module:

After this, enter a code for each replacement car that you want to make available for the online module:
button in the Model field.
Next step is to enter the codes that you have entered in the Online type field with each replacement car, in the online management module as well:

The cars in Plan-IT Online are now linked to the replacement cars in Plan-IT Workshop with the identical codes.
When a customer is making an appointment and selects a day and time, the online module checks which replacement cars are still available in Plan-IT Workshop on that day. The replacement cars that already have a reservation scheduled on that day are shown in grey and cannot be selected anymore.

When a customer has sent an appointment request where a replacement car is selected, Plan-IT Online will place a reservation for the work order on the planboard like it usually does, and also a reservation for the replacement car automatically. This way the same replacement car cannot be selected on the same day by another customer.