Resources:
Set Up Escalation and Entitlements (Trailhead) - https://trailhead.salesforce.com/en/content/learn/projects/set-up-case-escalation-entitlements?trailmix_creator_id=strailhead&trailmix_id=prepare-for-your-salesforce-advanced-administrator-credential
Omni-Channel (Trailhead) - https://trailhead.salesforce.com/en/content/learn/modules/omni-channel-lex?trailmix_creator_id=strailhead&trailmix_id=prepare-for-your-salesforce-advanced-administrator-credential
Live Agent Chat and Communities (Trailhead) - https://trailhead.salesforce.com/content/learn/projects/build-a-community-with-knowledge-and-chat?trail_id=communities
Resources:
Useful Validation Rule Formulas for Account Addresses - https://help.salesforce.com/articleView?id=fields_useful_validation_formulas_account_address.htm&type=5
Common Regex Validation Knowledge Article #000213868 - https://help.salesforce.com/articleView?id=000334073&type=1&am...
Resource:
Common Regex Validation Knowledge Article #000213868 - https://help.salesforce.com/articleView?id=000334073&type=1&mode=1