PI SHEET Instructions

Dear Gurus,

In T-code C202, i am uploading process instructions to phases, where i already maintained process instruction catagory PP_INSTR. But for this i m getting following error.

*Process instruction characteristic PPPI_NOTE does not exist (check entry)*

*Message no. C5860*

*Diagnosis*

*In the Process Instruction Overview, you have selected a process*

*instruction characteristics that does not exist.*

*Procedure*

*Please select an existing process instruction characteristic.*

For this i already assinged characteristics PPPI_NOTE to Process instruction catagory PP_INSTR.

But i m not able to tick the Text check box in O12C.

Kindly guide me for same, how to maintain the characteristic for text.

Thanks & Regards,

Hrishi