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1. Introduction

In audit management module of SAP the naming of an audit object (audit plan, audit, question list, question)

is given by the user. This has its disadvantages such as

  1. No convention in the naming of the object.
  2. If a naming convention is followed by the organization, users who are not aware of the naming convention

         will give their own naming which may not follow the naming convention.

Hence we go for the numbering routine which generates the naming of the Audit objects automatically while

creating them which follows the naming convention.

The BADI used for implementing the numbering routine is PLM_AUDIT_IDENTIFIER.

Method used for implementing numbering routine: GET_EXTERNAL_ID

2. Business description

Don’t have to do manual numbering, and therefore more effective – will also remove the risk of someone trying

to introduce a system in the numbering, which then could raise demands on reporting etc.

3. Steps to create Audit

Go to transaction PLMD_AUDIT.

Select the audit object which needs to be created from the options displayed after pressing the create icon.

The audit objects can be created by two ways.

  1. Directly by selecting the object in top three options
  2. By using a template which references(copies) the already created audit objects by selecting from below

         three options.

Provide the name of the object (before numbering routine is implemented).

Provide the necessary values for the audit and save.

4. Implementation of numbering routine

Go to the BADI: PLM_AUDIT_IDENTIFIER   and create an implementation (Ex: znumbering).

Go to the method GET_EXTERNAL_ID and implement the numbering routine.

There are different audit object for which the naming convention has to be unique.

The different audit objects and their object type are listed below.

Audit object

Object type

Audit plan




Question list


Audit question list


Part, Element, Question


Audit Part, Element, Question


Corrective and preventive action


Parameters of the Method GET_EXTERNAL_ID

Import parameter:

IV_OBJECT_TYPE: will contain the object type of the audit object.

IV_EXTERNAL_ID: contains the name of the Audit object if the name was given.

IR_PARENT_OBJECT: Contains the parent object of the audit object

Export parameter:

EV_EXTERNAL_ID: will be used to set the numbering for the audit object.

4.1 Creation of number range object

In my scenario I have generated the numbering for each of the audit object using the

number range objects.The function module NUMBER_GET_NEXT will be used to retrieve

the numbering from the number range object.

Creation of number range object:

Go to transaction SNRO.

Provide the name of the number range object and press create.


Provide the necessary details.


Create the intervals and save. In my case I have created four intervals each for the object type’s AUP, AUO, AQN, COR.

Here I have created interval AP for object type AUP, AU for object type AUO, CA for object type COR and QL for object type AQN.

4.2  Creating the numbering for the audit objects

Retrieve the numbering from the number range object by passing the interval in parameter

NR_RANGE_NR and the number range object name in the parameter OBJECT. Retrieve

the number from the parameter NUMBER.Concatenate the interval name and the number

into the export parameter W_EXTERNAL_ID of the method.

Check for the input object type.

IF iv_object_type = ‘AUP’
OR iv_object_type = ‘AUO’
OR iv_object_type = ‘COR’
OR iv_object_type = ‘AQN’.

Based on the input object type call the number range object

= ( ‘AP’ or ‘AU’ or ‘CA’ or ‘QL’) based on the input object type
= ‘ZNUM’
number              = lv_number

Based on the number range object’s numbering and name build the numbering for the

audit objects.

ev_external_id+2 = lv_number.
(2) = ‘
AP’ or ‘Au’ or ‘CA’ or ‘QL’ (based on input object type)

Audit created after numbering routine is implemented.

Instead of using number range object to generate the numbering we can also use our

own logic to generate the internal numbering.

5. Disable the input field

Once numbering is generated we can disable the input for the naming field so that the

user can’t able to overwrite the generated naming.We need to use the method

IS_EXTERNAL_ID_CHANGEABLE of the BADI to disable the input of the naming field

using the below logic.

To disable the input for the naming field make the export parameter

rv_is_changeable = ‘0’.

6. Difficulties faced

  • When creating audit using template the BADI will be executed twice hence the

         numbering will be incremented by 2 from the previous number. Hence a check

         must be performed so that the Number range object was called only once.

  • When creating audit Question list using template the incoming object type will

         be AUO instead of AQN. This should be taken care by checking the parent object

         type with the import parameter object type. If object type is AUO and parent object

         type is AUP the object is Audit. If both the object type and parent object type are AUO

         then the object is Question list.

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