SAP Message C0840 - - Text symbol &1: Invalid reference to control characteristic &2

Diagnosis
The process instruction contains text symbol &V1& that refers to acontrol characteristic. However, the process instruction assistant onlysupports text symbols with characteristic numbers if they refer tomessage characteristics.

  • If the control characteristic is used only once in the process
  • instruction, the text symbol is processed correctly in the processinstruction assistant.
    • If the control characteristic is used more than once, the system
    • creates a text symbol referring to the first use of the characteristicwhen you exit the PI assistant.

      Procedure
      If the control recipe is used more than once, carry out the followingsteps to suit your requirements:

      • Delete the text symbol.

      • Correct the text symbol on the characteristic overview when you have
      • exited the process instruction assistant.