Error Printing Dispatch Ticket: Invalid Use of Null

Description of Error:

When attempting to print a dispatch ticket generated from a service agreement, the user gets the error:

Error Printing Dispatch Ticket: Invalid Use of Null

After receiving this error the ticket does not print. Subsequent attempts result in the same error.

Cause of Error:

The error occurs because a task referenced on the service agreement has been deleted.

Resolution:

The task that no longer exists must be removed from the service agreement via the Schedule tab in the Enter Service Agreements screen.

The dispatch must be edited to remove that same task and then saved again, then it can be successfully printed.

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