Error while creating process instruction sheet in COR2

Question

While creating Process instruction sheet, the following error is occuring. Please guide me to resolve the issue.
Define variable QTYPRODUCED for default value
Message no. CPOC110
Diagnosis
In the process instruction, variable QTYPRODUCED is defined for the value that you want the system to propose when data is entered in the PI sheet. This value does, however, not exist because it has not yet been defined as a variable.
If you want to use a variable in a process instruction, however, you must first have defined it in a preceding process instruction or in the same process instruction.
Procedure
Define variable QTYPRODUCED in one of the preceding process instructions or in the same process instruction.
Define Variable
Regards
Kumar

Answer 1

1.  Assign characteristic PPPI_VARIABLE to the process instruction before the message characteristic to which the variable is to refer
2.  Assign the required variable name to characteristic PPPI_VARIABLE.