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What is Account Assignment Category in SAP MM, How to configure?
This Blog Post will give the overview on what is Account Assignment Category in SAP MM and How to configure it within SAP system. I will explain configuration step by step in SAP configuration.
This article will guide you through step by step procedure and will give you the complete idea on usage of Account Assignment Category and Item Category.
Account Assignment Category:
It indicates what type of purchase the company is doing in Purchasing Documents, whether it is for consumption or anything relation to orders, projects etc. The nature of this also indicates which accounts it needs to be charged for when the incoming invoice and Goods Receipt are posted.
Depending on the requirements you can create customized ones as well. Select one line item and click on the icon (with the magnifying class). Or if you want to create one Hit the “New Entries” icon.

Certain configuration needs to be maintained for a particular account assignment category and the screen selection. Below image shows the configuration and screen selection..

The above screen will pop-up to maintain the configs. For now, lets consider K- Cost Center
So, for “K” only GL Account, Cost Center needs to be mandatory i.e. user need to specify the respective value for this and for rest can be maintained as optional/hidden/display.
In the detailed Information tab, we can see certain options
- assg.changeable (Account Assignment Changeable) – It indicates whether the specified Account Assignment category can be changed in Goods Receipt/Invoice Receipt or not.
- Consumption Posting – It specifies whether the goods that are procured are used for which purpose like for personal usage or for a project. Some options include Consumption, Asset, Unknown, Accounting via Project/ Sales Order
- For example , let say you need to buy 300 chairs for IT dept but HR dept also needs 200 chairs. So, you will create a purchase order for 500 chairs with Account Assignment Category ‘K’. If distribution is configured than you can split the qty in 300 – 200 and assign them to their respective GL Account/ Cost Center in Purchase Order. Since each department would be having it’s own Cost Center.
- Account Modification – IT indicates what GL account it will be posted through the Account Determination
- acct.assgt (Derive Account Assignment) – If this is configured for an account assignment category, then the GL account and Cost Center will be pulled automatically by the system. (Pre-requisite: In Acct Modification whatever value is maintained for that a corresponding GL account should be defined in Tcode OBYC) This can be used for both materials having MMR or without MMR.
- ID: AcctAssgt Scrn (Account Assignment Screen) – Defines whether it is a single or multiple account assignment.
After this we have certain checkboxes like Goods Receipt/ Invoice Receipt – Defines whether Goods Receipt will be relevant or not for the items created with this account assignment category.
After completing all the steps you can create the Purchase Orders using an Account Assignment Category.
So here we complete the configuration about the Account Assignment Categories.
Let’s move to what combination of Account Assignment and Item Category is allowed in Purchasing document.

It is a mapping between the Item Categories and Account Assignment that indicates what are the relevant and correct combination that can be used in purchasing document.
Okay, now you might be wondering what are item category?
Item categories are defined to provide additional control functions for the documents to meet the demands resulting from different business transactions.
Basically it has the same functions as of Account Assignment but with a different set of usage.
There are different Item categories configured in system. You can define/create them here

The above are some standard Item category defined by SAP, but always open to create a custom one as per the requirements.
Here I complete the detailed explanation of Account Assignment, Item Category & it’s configuration in SAP MM.
Please do provide your valuable feedback on this post in comments section, this will help me in improving my content and share more knowledge with this community, also you can follow me for more content related to SAP!
Till then Happy learning!
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Nice thanks for sharing
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Hi Garvit, i guess new Item categories can't be created and only those provided by standard system to be used.
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assign account assignment category(K)to material type or purchase order
I want t know that could i assign account assignment category(K- cost center) to material type or purchase order document type.
When i select a special material type or purchase order documnet type, the system should be automatically assigned "K" as account assignment category.
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In SAP MM, procurement process involves the cost of goods and services that needs to be paid to the vendor by an organization. The cost being paid must be posted in an organization necessarily in a correct general ledger (G/L) account. It is quite impossible to recollect and feed the correct G/L account every time during procurement. To avoid this inconvenience, the SAP system can be configured so that the system will automatically determine the correct G/L account that needs to be posted. G/L account is posted when goods receipt is done as well as during clearing the invoice verification. Account determination deals with the following terms−

Define Valuation Control
- Group together Valuation Areas
Define Valuation Classes
Configure automatic posting.
Valuation areas can be grouped together and can be assigned to one grouping code, if they belong to the same G/L account. For example, different plants under one company code can be assigned the same valuation grouping code and vice versa. Before this, valuation grouping code must be activated and this can be done by following the steps given below.
Path to Activate Valuation Grouping Code
IMG ⇒ Materials Management ⇒ Valuation and Account Assignment ⇒ Account Determination ⇒ Account Determination without Wizard ⇒ Define Valuation Control
TCode: OMWM
Step 1 − On the Display IMG screen, select Define Valuation Control by following the above path.

Step 2 − Select Valuation grouping code. Click on Save. Valuation grouping code is now activated.

Group Together Valuation Areas
In valuation grouping, valuation area and valuation grouping code are assigned to the company code. This can be done by following the below steps.
Path to Define Valuation Area and Valuation Grouping Code
IMG ⇒ Materials Management ⇒ Valuation and Account Assignment ⇒ Account Determination ⇒ Account Determination without Wizard ⇒ Group Together Valuation Areas
TCode: OMWD
Step 1 − On the Display IMG screen, select Group Together Valuation Areas by following the above path.

Step 2 − Here you can define a valuation area with grouping code, and assign them to a company code. Click on Save. Valuation area and valuation grouping code are now defined for a company code.

Valuation class categorizes the G/L account on the basis of material type. For example, raw material will have different G/L account than the finished material, as the costs will be different in both the cases. Account reference is also maintained along with the valuation class. Account reference and valuation class can be defined by following the steps given below.
Path to Define Account Reference and Valuation Class
IMG ⇒ Materials Management ⇒ Valuation and Account Assignment ⇒ Account Determination ⇒ Account Determination without Wizard ⇒ Define Valuation Classes
TCode: OMSK
Step 1 − On the Display IMG screen, select Define Valuation Classes by following the above path.

Step 2 − Click the Account Category Reference button.

Step 3 − Click New Entries.

Step 4 − Provide the name of ARef (Account reference) along with its description.

Step 5 − Now go to same screen and click Valuation Class.

Step 6 − Click New Entries.

Step 7 − Provide the name of valuation class, ARef (Account reference), and description of valuation class.

Step 8 − Now go to the same screen and click Material Type/Account Category Reference.

Step 9 − Here you can map material type with ARef (Account reference). Click on Save. G/L account can now be posted for different material types.

G/L account is automatically determined for each of the transactions. It happens so because automatic postings are configured in the SAP system. Automatic posting can be configured by following the steps given below.
Path to Configure Automatic Posting
IMG ⇒ Materials Management ⇒ Valuation and Account Assignment ⇒ Account Determination ⇒ Account Determination without Wizard ⇒ Configure Automatic Postings
TCode: OMWB
Step 1 − On the Display IMG screen, select Configure Automatic Postings by following the above path.

Step 2 − Click Account Assignment.

Step 3 − Here you can maintain the transaction for which automatic account determination is there. Click on Save. Automatic posting for transactions is now configured.


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Go in OMS2 select your material type you are using for your material then click on magnifying glass.In next screen select your plant and see if quantity and
Check whether u have maitained accounting view for the material u have used in PR, if not maintained then u must either maintain accounting view
In material master basic view there is account assignment grp field. Earlier this field has the value for 03 semi finished goods and with
What is Account Assignment Category in SAP MM, How to configure? · assg.changeable (Account Assignment Changeable) · Consumption Posting
Go to Transaction "OVK5" and you can maintain the Material account assignment groups. And in "OVK8" you can assign account assign groups of
When your account assinged category is mandatory in that case go and see the account modifier assigned in account assinged category. After that
Account assignment mandatory for material 0000000N6451 (enter acc. ass. cat.) Message no. ME062. Diagnosis. There is no provision for value-based inventory
Yes you can assign account assignment catagory to PO doc type but not for Matl type. SPRO- MM - Purchasing - PO - Define Document types - Select your doc type
sap #mm #accountassignment #mmaccount #course #sapcourse ... Account Assignment Category in Material Management | SAP MM | DK TECHNOLOGIES.
Step 1 − On the Display IMG screen, select Configure Automatic Postings by following the above path. ... Step 2 − Click Account Assignment. ... Step 3 − Here you