What service your company uses to approve requests?
does your company uses any service or platform to generate and approve requests without using mails or dm's? some example of requests could be, github, jira, and cloud based accesses.
is anyone using Microsoft Entra ID? if not then what are you using? and was it built in-house?
We built an in house tool for self service provisioning of Entra ID (Azure AD) app registrations. It has some business rules enabled to require MFA, naming conventions, and generates a ticket if someone requests a privileged Microsoft Graph permission.
Not aware of a COTS alternative.
Active Directory or LDAP are widely used to manage permissions and roles both in and outside the MS ecosystem (Entra seems to be AD rebadged), but requests are usually handled with a ticketing system (eg. Jira has "service desk" functionality, but other tools do as well).
Most ticketing systems also integrate with email, and most would have a Slack bot too.
I’m quite sure Servicenow or Okta can do this. But there are probably cheaper options out there.