How to access Solicitation number from procurement in the CRM service request page using application

Content

While creating a new solicitation request the solicitation number gets assigned automatically, Firstly need to know in which table this auto assigned solicitation number is getting stored.

Secondly, If there is any webservice / way where we can access this solicitation number as a drop down in the service request page using the application composer

I researched and found that both belong to the different areas , Procurement and CRM respectively would be very helpful if there is any way in the application composer that we can user this

Is there any way i can create a drop down in the SR page via application composer that contains all the solicitation number that are being created ?