If you manage the PRTs used in your company at a detailed level, you can determine when assigning a PRT to an operation whether or not it is available for that operation at the time required.

The checks for production resources/tools of type "Equipment" can only be made if your system adminstration has activated one of the following options in Customizing:

• Equipment status check
• Equipment status and resource pool check

To check the resource pool, the following prerequisites must also be met for the equipment master record:

• A performance-based counter, from which readings are regularly taken, must be assigned to the equipment.
• A performance-based maintenance plan must have been created for the counter.

You can check the availability of PRTs for an individual operation or for an entire order.

Depending on your Customizing settings, the system automatically checks the availability of the scheduled PRTs when the order is released.

For production resources/tools of type "Material", the system checks whether:

• The equipment status allows the PRT to be scheduled
• Scheduling is advisable based on the stock situation

For production resources/tools of type "Equipment", the system checks whether:

• The equipment status allows for scheduling in the order
• The existing resource pool is sufficient for planning

For production resources/tools, the resource pool means the difference between the actual counter reading and the next planned counter reading.

If the check reveals that certain scheduled PRTs are not available, your system settings determine whether or not you can still release the order.