A type is a promise about the value

A stock count of 18 units is not the same kind of value as a label like A-14 or a reorder threshold like 20.50. Choosing an appropriate ABAP type helps prevent confusing text with arithmetic.

Start with the shape of the data

DATA(bin_code) = 'A-14'.
DATA quantity TYPE i VALUE 18.
DATA reorder_threshold TYPE p LENGTH 8 DECIMALS 2 VALUE '20.50'.

i is an integer type, useful for whole-number counts in a small example. Packed numbers (p) can represent decimal quantities with a declared number of decimal places. Character-like values are appropriate for labels and identifiers.

For related fields, use a structure

TYPES: BEGIN OF ty_bin,
         bin_code TYPE string,
         quantity TYPE i,
       END OF ty_bin.

DATA(bin) = VALUE ty_bin( bin_code = 'A-14' quantity = 18 ).

A structure groups related fields into one meaningful record. It does not store a row in a database by itself; it is a value in your program.

Avoid guessing types from appearance

'0018' can be text when leading zeros are meaningful, even though it looks numeric. A quantity should generally be numeric so comparisons and calculations behave as intended. Real SAP applications often use data elements and domain-specific types; use the type defined by the business object or API rather than inventing a replacement.

Practice

Create a whole-number quantity and decimal threshold. Build a short message in result, then add the output statement for your selected program context.

Version note: Type availability and exact syntax vary by ABAP release/language version. Verify in your system.

Sources

• SAP Samples, Structures
• SAP Samples, ABAP Cheat Sheets overview
• SAP Help Portal, ABAP Keyword Documentation

DATA quantity TYPE i VALUE 18.
DATA reorder_threshold TYPE p LENGTH 8 DECIMALS 2 VALUE '20.50'.
DATA(result) = |Bin A-14 has { quantity } units|.

WRITE result.

out->write( result ).