---
schema_version: "1"
id: 9c66027b55eaaa77e8b7b61097a57585d54cd9848c2a0a98ea00af10de234c35
title: Apex Resources
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/industries-integrations/comms/guides/TMF637/apex/tmf637_apex_interfaces.md
canonical_url: https://developer.salesforce.com/docs/industries/communications/guide/tmf637_apex_interfaces.html
source_site: developer.salesforce.com
content_type: documentation
content_hash: 5520d7ab301002e12b787c73a6b37f09b452a9b31d44aafca734979249de2b35
products:
  - Communications Cloud TM Forum API
  - Industries Integrations
---
# Apex Resources

APEX class providing out-of-box implementation:

- TMFOpenAPIProductInventoryService

Consider adding pre-hooks or post-hooks for the out-of-box integration procedures by creating new version of the IPs for customizations.