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SAP Transaction OB28: A Comprehensive Guide for SAP Users

SAP Transaction OB28: A Comprehensive Guide for SAP Users

Welcome to our tutorial on SAP transaction OB28, a crucial transaction code used in SAP Financial Accounting (FI) module. In this tutorial, we will provide you with a step-by-step guide on how to effectively utilize OB28 for managing posting periods in your SAP system. Whether you are a novice SAP user or an experienced consultant looking for a refresher, this tutorial will equip you with the necessary knowledge to navigate through OB28 seamlessly.

Before we dive into the details, we’d like to introduce you to a valuable resource that can enhance your SAP FI skills and help you become an expert in the field. Check out the SAP MM online video training offered by our expert SAP MM consultant, available at roadtoexpert.com. This comprehensive training program will provide you with in-depth knowledge and practical insights to boost your proficiency in SAP MM and accelerate your career growth.

Now, let’s begin our tutorial on using SAP transaction OB28.

What is SAP Transaction OB28?

SAP Transaction OB28 (Define Posting Periods) is a key transaction code used in SAP FI to define and manage posting periods for financial accounting. It allows users to set up and control the periods during which accounting documents can be posted in the system. With OB28, you can ensure the accuracy and integrity of financial data by restricting postings to specific periods and preventing unauthorized changes.

Step 1: Accessing SAP Transaction OB28

To start using OB28, follow these steps:

  1. Log in to your SAP system using your user ID and password.
  2. Launch the SAP Easy Access Menu.
  3. Navigate to the “Accounting” folder and expand it.
  4. Locate and click on the “Financial Accounting” folder.
  5. From the sub-menu, select “Financial Accounting Global Settings.”
  6. Next, choose “Document” and click on “Define Posting Periods” to proceed to the OB28 transaction.

Step 2: Understanding OB28 Transaction Screen

Once you have accessed OB28, you will encounter the OB28 transaction screen, which consists of various fields and tabs. Let’s explore each of them:

  • Company Code: This field allows you to select the company code for which you want to define posting periods. You can choose from a list of available company codes in your SAP system.
  • Fiscal Year: Here, you can specify the fiscal year for which you want to define posting periods. You can select the relevant year from a dropdown list.
  • Posting Period Variant: This field enables you to select the posting period variant that will be applied to the selected company code and fiscal year. The posting period variant determines the number of posting periods and their respective start and end dates.
  • Posting Periods: In this tab, you can view and manage the individual posting periods within the selected fiscal year and variant. Each period represents a specific time frame during which accounting documents can be posted.
  • Special Periods: The special periods tab allows you to define special periods that can be used for making adjustments or corrections outside of the regular posting periods. These periods are typically used for year-end closing activities.
  • Posting Authorizations: This tab displays the authorization settings for posting periods. It allows you to define who can post documents during specific periods, ensuring proper control and compliance.

Step 3: Defining Posting Periods with OB28

To define posting periods using OB28, follow these steps:

  1. Start by selecting the relevant company code, fiscal year, and posting period variant in the respective fields.
  2. Move to the “Posting Periods” tab and enter the start and end dates for each posting period within the fiscal year. You can also specify whether a period is open or closed for posting.
  3. If required, navigate to the “Special Periods” tab and define any special periods needed for adjustments or corrections.
  4. Next, go to the “Posting Authorizations” tab and configure the authorization settings for each posting period. You can specify who is allowed to post documents during specific periods.
  5. Once you have entered all the necessary information, click on the “Save” button to save the posting period settings.

Congratulations! You have successfully defined posting periods using SAP transaction OB28.

Step 4: Exploring Additional Functionality

SAP transaction OB28 offers various additional functionalities to streamline your financial accounting processes. Here are some notable features you can leverage:

  • Display Posting Periods: Use OB28 to display existing posting periods by selecting the relevant company code, fiscal year, and posting period variant. This allows you to review and verify the defined periods.
  • Change Posting Periods: OB28 also enables you to modify existing posting periods, such as changing the start or end dates or opening/closing periods for posting. Simply select the relevant period and make the necessary changes.
  • Posting Period Control: OB28 provides a comprehensive overview of the posting period control settings for each company code and fiscal year. You can review and analyze the control parameters to ensure proper financial management.
  • Integration with Other Modules: OB28 is closely integrated with other SAP modules, such as Materials Management (MM) and Sales and Distribution (SD). It ensures seamless coordination between financial accounting and other business processes.


In this tutorial, we have provided you with a comprehensive guide on using SAP transaction OB28 in the SAP FI module. We covered the basics of OB28, explained how to define posting periods, and explored additional functionalities. Remember, continuous learning and practice are key to becoming proficient in SAP FI.

To further enhance your skills in SAP FI, we highly recommend our SAP MM online video training, designed by our expert SAP MM consultant. This training program offers comprehensive modules and hands-on exercises to help you become an SAP MM expert. Visit roadtoexpert.com to learn more and take your SAP MM skills to new heights.

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