How to Change Purchase Order in SAP MM

Step 1)

For changing an existing purchase order you can use transaction code ME22N  (or ME22 – the old version).

Immediately after executing transaction code, system will take you to the most recent purchase order you have created, changed or viewed. If you need to change some other purchase order, you can use the option which appears in the menu

How to Post Goods Receipt in SAP MM

Step 1) You can post the goods receipt for a purchase order using transaction code MIGO.

Let’s say we want to do a goods receipt for our purchase order 4500018386.

1. Choose A01 – Goods Receipt.
2. Choose R01 – Purchase Order.
3. Enter your purchase order number.
4. Press ENTER.

Step 2)

How to Release Invoice in SAP MM Process

An invoice request is blocked for payment until its manually released. You can release the invoice by using t-code MRBR.

Step 1)

1. Execute t-code MRBR.
2. On the initial screen enter the company code and invoice number.
3. Check the release method (release manually if you want to process it in the second screen). This can be done choosing Automatically (please note the difference with automatic release in MIRO transaction being blocked and automatic release in t-code MRBR as those are two different things).
4. Our document has a manual payment block, so we will select that option. Execute.

How to Create Service PO in SAP MM Process

Service purchase orders are entered for services that are procured internally or externally. These purchase orders are different from standard ones as they don’t require a goods receipt since they have no stock. Other than that, there are a few small differences in PO creation. First is the document type for these orders. It should be FO – Framework Order.

To procure a service directly for a cost center, we will follow the below procedure.

Step 1)

Go to transaction ME21N.

1. Choose document type FO – Framework Order.
2. Choose vendor.
3. Choose validity start for PO.
4. Choose Account Assignment Category – K and Item Category – D.
5. Enter the description for the service.
6. Enter the quantity and unit of measure.
7. Enter the price for the service (e.g. 900 EUR per 1 AU – activity unit).

Create Purchase Order With Reference to Existing Document

Purchase order with reference

Purchase orders can be created with reference to a purchase requisition, RFQ, quotation, another purchase order, contract, sales order etc. To reference a PO to a previous document you can use the appropriate function.

You can create a PO referencing a previous document in 2 ways

1. Using ME58
2. Using ME21N

Referencing through ME58

In our case if we want to create a PO for a purchase requisition, we can use the transaction code ME58.

I will demonstrate the process starting from ME58 as it calls the ME21N and you can see that actually we create a PO in ME21N anyway.

Step 1)

1. Enter t-code ME58.
2. Choose Vendor and purchasing organization and
3. Select document types.
4. Execute.

How to Create Purchase Order in SAP MM Process

Purchase orders are used for a number of processes in procurement. They can be used for internal procurement (from one plant to another), external procurement of goods (direct consumption or stock) and services. It can also be used for subcontracting, third-party and consignment processes.

Purchase order processing is shown in the following diagram.

Purchase orders can be created with reference to a purchase requisition, RFQ, quotation, another purchase order, contract, sales order.

How to create a Purchase Order

Purchase orders are created by using standard transaction ME21N (or ME21 – the old instance of the transaction).

Step 1)

1. Enter transaction code ME21N.
2. Enter vendor.
3. Enter material number that needs to be procured.
4. Enter the quantity and unit of measure (optional – system uses UoM from purchase info record).
5. Press ENTER to confirm the data entered.

How to Create Source List in SAP MM

You can create a sourcelist in ME05 transaction. A source list is a list of possible sources for a material. If a source list requirement exists for the material, you must create a source list to proceed with the ordering.

1. Execute t-code ME05.
2. Enter material, or material list/range.
3. Enter plant.
4. Untick the test run check box to perform the transaction instead of using the test mode.
5. Execute the transaction.

How to Make Changes in Purchase Info Record

We said that the transaction used to create info record is code ME11. When we need to change the info record we can use codeME12 t-code, and for display only we should use code ME13, just as SAP standards are.

Step 1)

1. Transaction code to change the info record.
2. Vendor, material, purchase organization, plant, info record number data: we use it to identify what exactly we need to change in our session. If we fill in all the fields, we will be able to change all the existing views and data in those views. For example, if we don’t specify Purchase Organization we will not be able to edit the Purchase organization Data 1 View.
3. Info category (purchasing type). We are changing the data for this info category (only for views that are info category dependent).

Basic Introduction to Purchase and Purchase Requisition in SAP MM

Purchasing is a component of SAP MM module and its process can be roughly depicted in below diagram.

MRP (material resource planning) creates procurement proposal and later gets converted into Purchase Requisition. Next step is assigning source to Purchase Requisition, and release of Purchase Requisition. The PR gets converted to Purchase Order and upon goods receipt an invoice receipt can be done to complete the purchasing process. Additionally payment is processed (in FI module).

Procurement doesn’t have to start by the MRP, it can be initiated by consumption based planning or by direct creation of PR or PO.

MRP is a system function to determine the material requirements on both the material and BoM level. A BoM (Bill of Materials) is a list of components and subcomponents a single material is consisting of.

How To Create A Purchase Info Record in SAP MM Process

Purchase Info Record in SAP MM

Purchase info records are information about terms for purchasing a specific material from a vendor. They are maintained at vendor/material combination and can contain data for pricing and conditions, overdelivering and underdelivering limits, planned delivery date, availability period.

Procurement types in info record in SAP MM

1. Standard

   A standard info record contains information for standard purchase orders. The info records can be created for materials and services with and without master records.

2. Subcontracting

   A subcontractor info record contains ordering information for subcontract orders. For example, if you subcontract the assembly of a component, the subcontractor info record would include the vendor’s (subcontractor’s) price for assembling the component.
   

Physical Inventory Process in SAP MM

Physical inventory process in SAP is a process of determining that the inventory quantities are exact, or if there are differences in quantity mentioned physically present and that mentioned in the SAP system. Basically, after you are finished with physical inventory process in SAP MM, your system and physical stock levels must be the same.

It is mandatory for legal reasons, and in the most of the times it is conducted once a year.

To simplify the process, check the below diagram, these are the most common steps for doing physical inventory (not only in SAP ERP).

Physical Inventory Process Steps In SAP MM

Besides the legal reasons it is extremely helpful having the correct stock quantities in the system matching the physical stock. Management can have the correct information on the value of stock materials. ATP for sales is correct. MRP is done using the correct input parameters (material stock quantities).