IF Condition Help

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1

Hi Friends,

I get the following error in the if activity. How can I solve it?

I want to print 202502 while in period 202503. When in period 202501 it should say 202412.

Thank you for your support and cooperation.

The image shows a condition builder in UiPath with a rule that checks if the current month is not equal to January. (AI tarafından altyazılı)
The image shows a condition builder in UiPath with a rule that checks if the current month is not equal to January. (AI tarafından altyazılı)960×207 12.5 KB

This image shows a UiPath automation workflow with a condition checking the current month and a "Type Into" action specifying the transformation of the month and year values using the text builder. (AI tarafından altyazılı)
This image shows a UiPath automation workflow with a condition checking the current month and a "Type Into" action specifying the transformation of the month and year values using the text builder. (AI tarafından altyazılı)1417×557 36.6 KB

The image shows a UiPath automation workflow where a Text Builder is used to concatenate the previous year's date and the previous month's date in "yyyy" and "MM" string formats. (AI tarafından altyazılı)
The image shows a UiPath automation workflow where a Text Builder is used to concatenate the previous year's date and the previous month's date in "yyyy" and "MM" string formats. (AI tarafından altyazılı)1175×485 29.1 KB

Something went wrong with .
Activity If (If) failed:

Expression Activity type ‘VisualBasicValue`1’ requires compilation in order to run. Please ensure that the workflow has been compiled.

You can find the activity by searching id (press Ctrl + J to jump to activity):
0101F

2

Hey @ozgur.yukcan
You can simplify the expression without using <[ ]>. Just switch to expression mode in the Text field and use:

Now.AddYears(-1).ToString("yyyy") + Now.AddMonths(-1).ToString("MM")

This works directly in the Type Into activity. The <[ ]> syntax is only needed in pure Text Builder mode, which is not required here.

The image shows an Expression Editor in UiPath with a VB.NET expression that formats the current date to the previous year and previous month in "yyyyMM" format. (Captioned by AI)
The image shows an Expression Editor in UiPath with a VB.NET expression that formats the current date to the previous year and previous month in "yyyyMM" format. (Captioned by AI)941×630 27.4 KB

You can also move the logic into a separate Assign activity using a string variable and use it in type into activity.

3

Hi,

If you want to type the previous month’s year and month, it’s unnecessary to use IF activity and the following will work.

image
image1286×454 32.8 KB

Now.AddMonths(-1).ToString("yyyyMM")

Regards,

4

Hi @ozgur.yukcan

If you need a simple solution, use Now.AddYears(-1).ToString("yyyy") + Now.AddMonths(-1).ToString("MM") directly in the Type Into activity.

If you want better readability and debugging, assign previousPeriod = If(Now.Month = 1, Now.AddYears(-1).ToString("yyyy") + "12", Now.ToString("yyyy") + (Now.Month - 1).ToString("00")) in an Assign activity and use the variable in the Type Into activity. If you face a compilation error, the Assign method is more stable.

If you found helpful mark as solution.
Happy Automation with UiPath

5

PreviousMonth.zip (84.0 KB)
AddMonth() function can automatically take care of going to previous year, if the month is January. No need to explicitly use any if condition to achieve that.
I have attached a code snippet, please refer.

6

@ozgur.yukcan

To achive the output - we dont need to use any if activities. Below simple expression would do

Datetime.now.AddMonths(-1).ToString(“yyyyMM”)

The image shows a date manipulation code in UiPath that produces the output "202502," reflecting the date one month prior to "March 2025" as displayed on the system clock. (Captioned by AI)
The image shows a date manipulation code in UiPath that produces the output "202502," reflecting the date one month prior to "March 2025" as displayed on the system clock. (Captioned by AI)1261×612 88.7 KB

7

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