Send approval to user's manager when user is selected from a lookup select box on catalog item

[Matthew Udovich]

Good morning all. I have spent some time searching for this and I am not able to find a solution that I understand how to implement. I am very new to ServiceNow and developing catalog items for requests.

What I am tasked with is a for form requesting access to a mailbox where we are selecting the person/mailbox using a look up Select Box that is referencing the sys_user table for active only users with a specific company name. 

The form is working as expected, however, I am struggling with how to use that catalog item variable to get the manager name or email-which ever one is needed in Flow Designer to request approval from the mailbox owner's manager. 

Is this a hidden field I should be populating on the catalog item itself or is there a way to get this value within Flow Designer? I thought for some reason I could dot-walk the catalog item variable in flow designer, since it is a lookup of a user in ServiceNow, but I am wrong in that assumption.

I appreciate the assistance.

[Stephanie Barne]

I'm sorry I don't have an answer for this, but this is the exact issue I'm running into. I need an approval to be sent to a user identified within a user lookup variable on a catalog item. I've used the Get Catalog Variables action to pull in that specific variable, and am using the Ask for Approval action afterwards, and requesting approval from that specific variable. Everytime I create a new RITM for this catalog item from within the service portal (which is the intended location for the customer to use), it will create a new RITM, but no approval is fired. But what's strange is that if I test that same flow in flow designer on an existing RITM, everything works perfect. I'm stumped and hoping for a solution.