Recording of Actual Data in ABAP List-Based PI Sheets 
Use
You can use the entry fields offered in your PI sheet to record actual process data. You can enter data as follows:
You can enter individual values in the fields displayed on the right side of the PI sheet; see Recording Individual Values .
You can enter several values in tables; see Recording Values in Tables .
Once you have entered a value in the PI sheet, the system creates a process message of the message category defined in the corresponding process instruction. The value you have entered is copied to the message.
Note
Signatures have a special function within the PI sheet. They are used to confirm and report data for a process step. For information on how they are processed, see Reporting of Data .
Prerequisites
To carry out an input validation when data is entered in the PI sheet, the following requirements must be met:
An input validation has been defined for the input field in the relevant process instruction in the process order (see Definition of Input Validations ).
If the process instruction specifies that a signature is required to accept invalid input values, the type of signature has been defined in Customizing for the control recipe destination and in the process instruction.
For more information about the digital signature and the required settings, see Approval Using Digital Signatures .
Features
Input Validation
If an input validation is defined for a value in the process instruction, the system checks your entries. If the value you enter is outside the defined value range, the system issues a warning.
However, you can still transfer the invalid input value to the PI sheet, if this has been specified in the process instruction. You can make the following settings:
Invalid values are accepted without any restrictions
Invalid values are not accepted
Invalid values are only accepted with a signature
The PI sheet may request a signature. Depending on your system settings, this may be a signature with or without a password, one digital signature , or several individual digital signatures defined in a signature strategy . When you execute a digital signature, you must also enter a comment.
Signature strategies are carried out synchronously in the PI sheet. This means that the individual signatures must be executed immediately after one another. It is only then that the system saves the signatures and transfers the value.
The input value is not reported automatically when the signature is executed. If you change the value, you must execute the signature again even if the changed value complies with the validation rule.
Input values with signatures are marked by a special symbol in the PI sheet. You can display the signature from within the PI sheet any time.
Further Data Processing
Once a value has been transferred to the PI sheet, the system creates a process message that is used to report this value to process management; see Reporting of Data .
Caution
If several values need to be recorded in the PI sheet for one message and you do not maintain all of them at once, the system automatically transfers any default values defined for the values not yet recorded to the corresponding fields and thus to the process message. You can change the values but cannot delete value assignment.