types of signature

The R/3 PI sheet supports the following types of signature:

Signatures without a password check

You do not need a special authorization to enter this type of signature in the PI sheet. The system does not check the signature you entered.

Signatures with a simple password check

You can use this signature type for control recipe destinations of type 1 only.

Signatures with a simple password check consist of the following:

A user name

An application-specific user password

In the process instruction for the signature, you can specify any activity for the authorization object in the PI sheet. The system checks this authorization when you enter a signature in the PI sheet.

You assign plant-specific user passwords in Customizing for Control Recipe Destinations . To do so, you must be authorized to create user master records.

Digital signatures

If only one signature is required, you have the following options:

Simple signature with signature method

If you only set the Digital signature indicator, the signature method specified in the simple signature is automatically used for all control recipe destinations to which you have not assigned a signature strategy.

For simple signatures, you assign the signature strategy you want to use to the following signature objects:
- PI sheet: process step
- PI sheet: accept invalid input values

To make settings for the simple signature, go to Customizing for Process Management and choose activity Control Recipes/PI Sheets -> Digital Signature -> Specify Signature Method for Approval Using Simple Signature.

Signature strategy with one individual signature

Here, you assign an additional strategy with one individual signature to the control recipe destination or process instruction.

If more than one signature is required, you can use the:

Signature strategy with several individual signatures

Here, you assign an additional signature strategy with several individual signatures to the control recipe destination or process instruction.

To make settings for the signature strategy, go to Customizing for Process Management and choose activity Control Recipes/PI Sheets -> Digital Signature -> Signature Strategy.

To execute a digital signature, you must have the following authorizations:

In the authorization object for the PI sheet:

The authorization for the actvity Execute digital signature as well as for any activity defined in the process instruction

In the authorization object for the digital signature:

The authorization for the authorization group of the relevant individual signature if you use signature strategies

When executing a signature, you can also enter a comment. Entering a comment is mandatory for signatures that are used to accept invalid input values.