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Difference Between SAP Memory and ABAP Memory

Updated Aug 31, 2023

In SAP programming, two distinct types of memory come into play: ABAP memory and SAP memory. Understanding the differences between these memory types and their respective use cases is essential for optimizing resource usage and ensuring the speed and efficiency of SAP applications.

What is SAP Memory?

SAP memory operates as a more global memory pool that can be accessed by various programs across different sessions. This broader scope makes SAP memory an excellent choice when data needs to be shared among different main sessions or when information transfer is required across various parts of an SAP application. While SAP memory serves a similar purpose to ABAP memory – facilitating data sharing – it excels in its ability to transcend session boundaries and enable inter-session communication.

What is ABAP Memory?

ABAP memory is a type of memory that allows data to be stored and accessed within a specific internal session of an ABAP program. In simpler terms, the data stored in ABAP memory is limited to a single session, and other programs outside that session cannot access it. This localized scope makes ABAP memory an ideal choice when data needs to be shared among multiple transactions or activities within the same session. However, due to its session-specific nature, its reach is confined to a single program's execution context.

SAP Memory vs ABAP Memory

ABAP memory is distinct from SAP memory, as it can be considered local memory. It is employed for passing data across internal sessions. Import and export statements are used to read from and write to ABAP memory. Data remains unaffected during program calls, thus retaining its integrity. SAP memory is considered global memory, while ABAP memory is referred to as local memory due to its limited scope.

An advantage of ABAP memory is its independence from the ABAP programs or objects that generate it, enabling the transmission of values across different objects or programs.

Here are some key differences between SAP Memory and ABAP Memory:


SAP Memory

ABAP Memory


SAP memory is the memory area to which all main sessions within a SAP GUI have access.

ABAP memory is a memory area in the internal session of an ABAP program. It can be accessed by all ABAP programs within the same internal session.

Type of Memory

It is a global memory

 It is a local memory

Commands Used

Get and Set commands are used

Export and Import commands are used

Availability Available to all the users throughout the sending session Available to all the users throughout the external session


ABAP memory serves as a tool for data sharing within the boundaries of a single session, while SAP memory provides a global memory pool accessible across sessions. By utilizing these memory types appropriately, developers can enhance the performance, speed, and resource efficiency of their SAP applications, ensuring a seamless and effective user experience.