Jira automation-module: Problem with CRON expression

[JaA]

Hi,

I use the automation-module from atlassian (com.atlassian.plugin.automation.automation-module). Now I need a CRON expression which starts every 3 month on the 15th of March, June, September and December.

I came up with 0 12 15 3,6,9,12 * which is, according to https://crontab.guru/#0_12_15_3,6,9,12_* a vaild expression. But when I enter this in the automation plugin i always get the message that the expression is not valid.

Do you have any idea how i can fix this? The months are important and can't be changed.

Regards,

Jan

[JaA · Accepted solution]

Found the solution by myself:

0 0 12 15 3/3 ? *