SAP Message C0587 - Complete the process step first

Diagnosis
You cannot sign the process step as it has not been completelyprocessed. This may be due to the following reasons:

  • You have not yet maintained all input values.

  • You have not yet filled in the minimum number of lines required in a
  • table according to the process instruction.
    • A formula result has not yet been calculated.
    • Procedure
      Add the data missing between the current signature and the previousone.