+++
title = "Variable Naming"
weight = 1420
tags = ["C/AL","Readability"]
categories = ["Best Practice"]
+++
Variables that refer to a C/AL object must contain the objects name, abbreviated where necessary.

A variable must begin with a capital letter.

Blanks, periods, and other characters (such as parentheses) that would make quotation marks around a variable necessary must be omitted.

If a variable is a compound of two or more words or abbreviations, each word or abbreviation should begin with a capital letter.

Bad code

```al
...
    WIPBuffer@1002 : Record 1018
...
OBJECT Table Job WIP Buffer
```

Good code

```al
...
    JobWIPBuffer@1002 : Record 1018
...
OBJECT Table Job WIP Buffer 
```

Bad code

```al
...
    Postline@1004 : Codeunit 12;
...
OBJECT Codeunit Gen. Jnl.-Post Line
```

Good code

```al
...
    GenJnlPostLine@1004 : Codeunit 12;
...
OBJECT Codeunit Gen. Jnl.-Post Line 
```

Bad code

```al
LOCAL PROCEDURE HandleCustDebitCredit@17(...;"Amount (LCY)"@1001 : Decimal;...);
BEGIN
    IF ((... ("Amount (LCY)" \> 0)) ...) OR
        ((... ("Amount (LCY)" < 0)) ...)
    THEN BEGIN
    ...
```

Good code

```al
LOCAL PROCEDURE HandleCustDebitCredit@17(...;AmountLCY@1001 : Decimal;...);
BEGIN
    IF ((... (AmountLCY \> 0)) ...) OR
        ((... (AmountLCY < 0)) ...)
    THEN BEGIN
    ...
```