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The ASSERT statement is used to make assertions about the state of your program at runtime and to verify them. An assertion is a condition that you as a developer firmly assume to be always true (abap_true) at a specific point in the code. ASSERT is primarily a tool for: Development and Testing: To…

The AUTHORITY-CHECK statement is the central command in ABAP for performing authorization checks. With this statement, you check at runtime whether the currently logged-in user has the necessary authorizations to perform a specific action or access specific data. The SAP system checks whether the…

The CASE statement is a control structure for multiple branches in ABAP. It often provides a clearer alternative to a long chain of IF...ELSEIF...ELSE...ENDIF statements, especially when the program flow depends on which of several specific, discrete values a single variable (or expression) has. You…

The CHECK statement is a control statement in ABAP. Its main purpose is to conditionally control program flow, specifically in the following contexts: Within loops (DO, WHILE, LOOP AT): CHECK evaluates a condition. If the condition is false, the current loop iteration is immediately terminated, and…

The CLEAR statement is one of the most fundamental and frequently used statements in ABAP. Its purpose is to reset the content of a data object (a variable) to its type-appropriate initial value. It “clears” or “empties” the current value of the variable and restores the state the variable would…

The COLLECT statement is a special command in ABAP used for condensing or aggregating data in an internal table. The special feature of COLLECT is: It checks whether a row already exists in the target table whose key matches the row to be added. The “key” for COLLECT always consists of all…

The CONCATENATE statement is used to join the content of two or more character-type data objects (variables, literals) into a single string and store the result in a target variable. Syntax ... : These are the data objects (variables, constants, or literals) whose contents are to be joined…

The CONDENSE statement is used to remove unnecessary whitespace from a character-type data object (usually of type C - fixed-length string). It modifies the content of the specified variable directly in place. Specifically, CONDENSE performs the following actions in its default behavior: Removes all…

The CONTINUE statement is a control statement that is used exclusively within loop constructs (DO, WHILE, LOOP AT, and the obsolete SELECT...ENDSELECT loop). Its purpose is to immediately terminate the execution of the current loop iteration and proceed directly to the beginning of the next…

The CONSTANTS statement is used to declare constants in ABAP. A constant is a named data object whose value is set at declaration and cannot be changed during the entire program runtime. Using constants has several advantages: Readability: Code becomes more understandable when self-explanatory names…

The DATA statement is the fundamental statement in ABAP for declaring variables. Variables are named data objects (memory areas) whose content or value can be changed during program runtime. They are the core of data processing in ABAP, as they enable storing, reading, calculating, and manipulating…

The DO statement in ABAP is a loop construct used to execute a block of statements repeatedly. It comes mainly in two variants: Fixed number of iterations: Executes the loop block exactly times. Conditional exit from within: Executes the loop block potentially infinitely until the loop is…

The EXIT statement is a control statement in ABAP used to immediately and unconditionally terminate the execution of a specific processing block. The main use cases for EXIT are: Exiting loops: Prematurely leaving an entire DO, WHILE or LOOP AT loop. Exiting subroutines: Prematurely leaving a FORM…

Important preliminary note: The FIELD statement is not a command in normal procedural or object-oriented ABAP code (such as in a REPORT, a CLASS or a FUNCTION MODULE). Instead, FIELD is a keyword used exclusively in the flow logic of Dynpros (screens) created with the Screen Painter (Transaction…

The FIND statement in ABAP is used to search within character-like data objects (variables of type STRING, C, N, D, T) for strings or patterns. It is a very flexible tool for text analysis and offers two main modes: Search for a fixed substring: Finds the exact occurrence of a specific string.…

The FREE statement in ABAP is used to explicitly release the memory occupied by certain, often memory-intensive data objects and return this memory to the system (more precisely: to the current internal mode/context). At the same time, the variable to which FREE is applied is reset to its…

The IF statement is the central control structure in ABAP for controlling program flow based on conditions. It enables one or more statement blocks to be executed only when a specific logical condition is satisfied (true). This allows you to create branches in the program flow to respond to…

The MESSAGE statement is used to: Display messages: Communicate information, success messages, warnings, or error messages to the user (usually in the status bar, a popup window, or in the log). Influence program flow: Depending on the message type (see below), the statement can interrupt the…

The MOVE-CORRESPONDING statement is used to copy values between two structures or two internal tables, where only the components (fields) whose names exactly match in source and target are considered. Components with different names or components that exist only in the source or only in the target…

The PARAMETERS statement is an ABAP keyword that you use exclusively in the declaration part of executable programs (REPORT), function groups, or module pools. Its purpose is to define a single input field on the standard selection screen (Dynpro 1000) of the program. Through this field, the user…

These statements are used to actively signal an exception situation during program execution. You typically do this when: An error occurs that the current program unit (method, function module, form routine) cannot resolve itself. An unexpected or invalid state is reached. A specific business rule…

The REPLACE statement in ABAP is used to find occurrences of a search pattern (either a fixed string/substring or a pattern defined by a regular expression) within a character-like data object (e.g., STRING, C, N, D, T) and replace them with another string. An important aspect is that REPLACE…

The SELECT-OPTIONS statement is a special ABAP keyword that you use exclusively in the declaration part of executable programs (REPORT), function groups, or module pools. It serves to define complex selection criteria on the standard selection screen (Dynpro 1000) of a program. Unlike simple…

The SPLIT statement is used to divide a character-like variable (e.g., a string or a field of type C) into multiple substrings (segments) based on a defined delimiter. The result of this split can be written either into individual variables or – which is often more practical – into the rows of an…

The TRANSLATE statement in ABAP is used to manipulate the content of a character-like data object (such as STRING, C, N, D, T) character by character. It has two main functions: Case conversion: Converts the entire text to uppercase or lowercase. Character replacement: Replaces certain characters…

The WRITE statement is one of the most fundamental statements in ABAP for outputting data. Its main purpose is to write values (variable contents, literals, system fields, etc.) to the current output list (also known as “classic list” or “spool list”). This list is typically displayed when an…

The ADD statement is one of the basic arithmetic statements in ABAP, specifically designed for adding numeric values. Important note upfront: Although ADD still works, the statement is considered largely obsolete in modern ABAP. For additions, the addition operator (+) is now used almost exclusively…