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How to Create an LIS info structure – Purchasing – Part 1

LIS (Logistic Information Systems) for Purchasing:

Information Systems are tools for analyzing and gathering specific data in different areas like purchasing, inventory etc.

Concept of Info Structure:

The info tables will start with S, followed by 3 digit integer. Example for standard info structures are S012, S013, S031, S032, S033 etc. The same can be used for ZReports also. Apart from standard info structures, user can define user defined info structures too. The user defined info structures should start with S followed by a three digit number. From S000 to S500 are reserved for standard.

In case of user defined info structures, once the info structure is created with required updating, it will be updated along with standard tables during every relevant transaction. The same info tables can be used for other reporting purposes like zReports etc.

Analysis of Standard Info Structures:

Transaction: MCDG (Path: SAP Easy Access – Information Systems – Logistics – Purchasing – Tools – Flexible analysis – Evaluations – MCDG (Execute)


Enter the standard evaluation structure and evaluation method.

System will propose the standard characteristics.



Apart from standard info structure, we can define user defined info structure based on business requirement. For example, we can define an LIS table to update full purchasing cycle – from PO to Invoice.

Creation of user defined Info Structure:

Step1: Create Field Catalog – Characteristic catalog.

        A field catalog defines a group of relevant fields from the application. You can thus use a mixture of fields from any document hierarchies.

        Here, you can define the key fields required in the table.

Transaction Code: MC18

  • Enter name for field catalog.
  • Select Application from F4 List.

Application 02 for purchasing.

Press ENTER.

Click on “Characteristics”:

The selected Items will be visible with tick mark:

Save the characteristics field catalog.

Step 2: Create Key Figures.

            Key figures are values with particular relevance to business. These will be output of the report / analysis.

Eg: Invoiced amount, net order value, number of deliveries

Transaction Code: MC18

Enter the field catalog name, description and select the application.

Press ENTER.

Click on “Key Figures”

Select the required fields as explained in the previous step and click on “Copy+close”

Save the key figures.

Step 3: Create Info Structure

            The area in which data is collected in the Logistics Information System.

            An information structure defines a group of fields and is used for collecting and reducing data from an operative application such as sales or purchasing. It forms the basis for analyses and evaluation and includes:

  • A period unit, giving the structure a time reference
  • Characteristics, information with reference to which other information is cumulated (In short, it is the selection screen – Selection Parameters)
  • Key figures, information that is accumulated with reference to characteristics (This is the output fields)

Transaction Code: MC21

  • Enter info structure name – A four digit key between S501 and S999 (up to S500, is reserved for standard)
  • Info Structure description.
  • Application – Press F4 and select the Application. 02 stand for purchasing. The Applications available are listed below:

  • Select the info-structure type. The following are the examples:

          – Standard type ( ‘ ‘)

                      – Rebate Processing (B)

                      – Type ‘Transfer to SAP BW’ (T)

Please Note that the info structure type cant be changed once its created.

  • Planning Possible Indicator: Indicator that determines if an information structure is relevant in flexible planning. If an information structure is created with this indicator, it can be supplied with planning data (standard).

It is not possible to change the planning characteristic after creating the information structure.

Enter the details and press ENTER.

  • Click on characteristics. Here, you can select the fields to be displayed in the selection screen of the report.

Double click on the characteristics field catalog created in the first step.

Double click on the fields to be selected to the selection screen. The fields can be selected from any field catalog.

  You can select maximum of 9 field characteristics.

Once required fields are selected, click on “Copy + Close”

Now, click on “Copy”

Please follow the part 2 document: How to Create an LIS info structure – Purchasing – Part 2

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  • Hi AKPT,

    This is really useful document for us like fresh bird in MM.

    Let me come back if I have any further clarification on LIS Info structure.

    Thanks a lot...



  • Very useful document. Thank u for kind sharing!

    I actually follow your steps and created an info structure successfully.

    However, I encounter a problem when I define the "counter of purchase orders" as the only key figure and try to generate the updating rules, an error message is popped up, says that " purchase orders: hierarchy not maintained.". And the updating rules can't be generated.

    Could you please give me some idea on how to solve the problem? ? Thank you very much!!

      • Hi AKPT,

        The field I set as key figure is "purchase order (Field name: ABEST, table: MCEKKZ). I want to know how many purchase orders are there. The stable is generated successfully, but when i generate updating rules via MC24, I got the message as below: (mainly the one:"purchase order: hierarchy not maintained.")

        /wp-content/uploads/2014/04/screenshot_4_438695.jpgthank you so much!

        Best regards,


        • Hi taylor dai,

             In MC24, maintain the update rules for the field ABEST (purchase orders) as shown below: (with hierarchy A as highlighted in screenshot)

             Maintain as above and generate update rules. Revert back if you are facing any other issue.



  • Hi,AKPT:

    Great document..But how can we  get the source table&source field if we create other kind of info structure?

    Is there any difference to use standard info structure & standard info structure field in below screenshot?



    • Hi,

         Thanks for the feedback.

         The source table and field for the key figure and characteristic catalog will be automatically picked / updated once you select the fields in MC18. If you want to see the source table and fields while selecting the fields in MC18, you may click on "switch display" button as shown below:

         System will show you the source table and field.



  • Hi Dear expert,

    Could you please clarify me on below.

    we have an existing custom info structure S747 which is using in a production system, we have a requirement to add new key figure and characteristic to existing info structure.

    we have added new filed in key figures and characteristics then we have copied in info structure in MC22, we saved info structure and when we are trying to generate info structure it is prompting to delete data in info structure, this structure having a huge amount of data in the production system.

    how to activate info structure with out deleting data while we are adding new filed to info structure, kindly help me to handle this scenario. thanks in advance for your help.



  • Hi Prasoon,

    Nice document. Is there anyway I can add a custom characteristic created out of concatenation of two available characteristics.