Update a field with a value from another Module

Update a field with a value from another Module

Hello -

I have a scenario where I need to update a field with a value from another module. We have individual sites that are created under accounts. Within the site record, there is a field called "Site CG Name". All CG names use the same format - 'cg.[account shortname].cnic.io' - where 'account shortname' is the field coming from the Accounts module.

API Name for each
Accounts module = Accounts
Account shortname field =
Site module = Sites
Site CG Name =

Further information - the CG name should only populate if the account has an account shortname.

Examples:
Account Shortname = smith
Site CG Name should = cg.smith.cnic.io

Account Shortname = bobs
Site CG Name should = cg.bobs.cnic.io

Thank you.
Daniel