Hi Gerwen,

In the DOM form itself today we cannot run automation to implement such logic. Therefore it is possible to include interactive automation after a DOM button where automate whatever you want:

Below an example of a production job portal where you fill in start/ end time of the production & then at the bottom you have a select resource button which triggers the interactive automation in the third screenshot. In that interactive automation you only show the available resources in the dropdown which are available in time period you defined in that job hope this helps