How to pass Impact and Urgency variable values from service Portal to RITM form?

[Raghav22]

I have crated 2 variables in service portal form as you can see in the below screen shot. When I select values of Business Impact and Business Urgency then on submit click I have to pass these value to RITM form and in RITM form there are 2 fields Impact and Urgency, those 2 values of service portal should mapped with these 2 RITM values (impact and urgency) and after mapping it should be auto populate in Priority field.

Also, I have created catalog client script on onsubmit for Business Impact and Business Urgency.

1. Service Portal:

2. RITM form:

[Vasantharajan N]

Use runscript activity in the catalogue item workflow and update the ritm impact and urgency value

[Raghav22]

Could you please guide me how to do this because i am a fresher one. 

[Vasantharajan N]

Could you post the screenshot of your catalogue item workflow if it can be. Please hide/mask the name of the activity when you share it. 

[Raghav22]

I didn't created workflow for this. Only i have created variables, UI policy and catalog client script.

I think this should be achieved by using Priority matrix.