Decrement Variable Action
<AMDECREMENTVARIABLE RESULTVARIABLE="text [variable name]" AMOUNT="number">
Decrements a variable by the specified amount. The variable must contain a valid number. If the variable is blank, zero is assumed.
Used to decrease the value of a "counter" variable. Normally counters are used inside of a loop.
Specifies the name of the variable to decrement.
Specifies the value that the variable should be decreased by.
All variables must be created before they can be used. This is done using the Create Variable <AMVARIABLE> action. Once created, variables can be set using the Set Variable <AMSET> action, or by certain actions that support populating variables. To get data out of the variables, in any action parameter, simply surround the variable name with percentage % signs (e.g. %varname%). Remember not to use percentage signs when specifying the name of a variable to populate, percentage signs are only needed to get data out.
This action includes the Description tab for entering a custom step description.
More on setting custom step description
This action also includes the standard Error Causes and On Error failure handling options/tabs.
More on Error Handling Options
All text fields allow the use of expressions, which can be entered by surrounding the expression in percentage signs (example: %MYVARIABLE%, %Left('Text',2)%). To help construct these expressions, you can open Expression Builder from these fields by pressing F2.
More on variables
More on expressions
More on the expression builder
NOTE: The code below can be copied and pasted directly into the Steps pane of the Task Builder.
<AMDECREMENTVARIABLE RESULTVARIABLE="thecounter" AMOUNT="1">