---
title: "Engage: Existing Employees | Help Center"
description: Implement integrations and manage federal and state tax forms.
---
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1. [Help Center](https://support.careerplug.com/)
2. [Engage: Existing Employees](https://support.careerplug.com/engage-existing-employees)
# Engage: Existing Employees
Implement integrations and manage federal and state tax forms.
## Integrations
- [Using CareerPlug's ADP RUN Integration](https://support.careerplug.com/using-careerplug-s-adp-run-integration)
- [Using CareerPlug's ADP Workforce Now Integration](https://support.careerplug.com/using-careerplug-s-adp-workforce-now-integration)
- [Paychex integration](https://support.careerplug.com/paychex-integration)
- [Setting up and using the E-Verify integration](https://support.careerplug.com/setting-up-and-using-e-verify)
- [Using payroll integrations](https://support.careerplug.com/using-payroll-integrations)
- [Automatically exporting employees to ADP](https://support.careerplug.com/automatically-exporting-employees-to-adp)
- [Adding E-Verify credentials for hiring managers](https://support.careerplug.com/adding-e-verify-credentials-for-hiring-managers)
- [How new hires access their Onboarding paperwork](https://support.careerplug.com/how-new-hires-access-their-onboarding-paperwork)
- [ADP Integration - Custom Employee Fields](https://support.careerplug.com/adp-integration-custom-employee-fields)
- [Editing ADP employee custom fields in CareerPlug](https://support.careerplug.com/editing-adp-employee-custom-fields-in-careerplug)
- [Setting up and using the SwyftOps integration](https://support.careerplug.com/setting-up-and-using-the-swyftops-integration)
See less ▼
## Employer Forms
- [Federal I-9: Required fields and requiring uploaded documentation](https://support.careerplug.com/federal-i-9-required-fields-and-requiring-uploaded-documentation)
- [Onboarding e-Signature compliance](https://support.careerplug.com/onboarding-e-signature-compliance)
- [Form I-9 compliance](https://support.careerplug.com/form-i-9-compliance)
- [Document signers in Onboarding](https://support.careerplug.com/document-signers-in-onboarding)
- [W-4 employer fields](https://support.careerplug.com/w-4-employer-fields)
## Employee Retention
- [Retain top talent with the Core Traits Assessment](https://support.careerplug.com/retain-top-talent-with-core-traits)
- [Troubleshooting](https://support.careerplug.com/troubleshooting#main-content)
- [Contacting Support](https://support.careerplug.com/troubleshooting#contacting-support)
- [Top Support Issues](https://support.careerplug.com/troubleshooting#top-support-issues)
- [Video Library](https://support.careerplug.com/troubleshooting#video-library)
- [Account](https://support.careerplug.com/account#main-content)
- [Billing](https://support.careerplug.com/account#billing)
- [Account Management](https://support.careerplug.com/account#account-management)
- [Account Configuration](https://support.careerplug.com/account#account-configuration)
- [Notifications](https://support.careerplug.com/account#notifications)
- [Getting Started](https://support.careerplug.com/account#getting-started)
- [What's New?](https://support.careerplug.com/whats-new#main-content)
- [Monthly Updates](https://support.careerplug.com/whats-new#monthly-updates)
- [Announcements](https://support.careerplug.com/whats-new#announcements)
- [Attract: Job Postings](https://support.careerplug.com/attract-job-postings#main-content)
- [Hiring Process](https://support.careerplug.com/attract-job-postings#hiring-process)
- [New Job Postings](https://support.careerplug.com/attract-job-postings#new-job-postings)
- [Existing Job Postings](https://support.careerplug.com/attract-job-postings#existing-job-postings)
- [Attract: Targeted Recruiting](https://support.careerplug.com/attract-targeted-recruiting#main-content)
- [Careers Page](https://support.careerplug.com/attract-targeted-recruiting#careers-page)
- [Job Boards](https://support.careerplug.com/attract-targeted-recruiting#job-boards)
- [Additional Sources](https://support.careerplug.com/attract-targeted-recruiting#additional-sources)
- [Evaluate: Communication](https://support.careerplug.com/evaluate-communication#main-content)
- [Applicant Management](https://support.careerplug.com/evaluate-communication#applicant-management)
- [Applicant Tracking](https://support.careerplug.com/evaluate-communication#applicant-tracking)
- [Messages](https://support.careerplug.com/evaluate-communication#messages)
- [Contacting Applicants](https://support.careerplug.com/evaluate-communication#contacting-applicants)
- [Evaluate: Interviews](https://support.careerplug.com/evaluate-interviews#main-content)
- [Pre-Interview](https://support.careerplug.com/evaluate-interviews#pre-interview)
- [Post-Interview](https://support.careerplug.com/evaluate-interviews#post-interview)
- [Assessments](https://support.careerplug.com/evaluate-interviews#assessments)
- [Onboard: New Hires](https://support.careerplug.com/onboard-new-hires#main-content)
- [Making Your Hire](https://support.careerplug.com/onboard-new-hires#making-your-hire)
- [New Hire Assignments](https://support.careerplug.com/onboard-new-hires#new-hire-assignments)
- [Employee Access](https://support.careerplug.com/onboard-new-hires#employee-access)
- [Onboard: Management](https://support.careerplug.com/onboard-management#main-content)
- [Onboarding Configuration (Classic)](https://support.careerplug.com/onboard-management#onboarding-configuration-classic)
- [Checklists (Classic)](https://support.careerplug.com/onboard-management#checklists-classic)
- [Completed Onboarding](https://support.careerplug.com/onboard-management#completed-onboarding)
- [Engage: Existing Employees](https://support.careerplug.com/engage-existing-employees#main-content)
- [Integrations](https://support.careerplug.com/engage-existing-employees#integrations)
- [Employer Forms](https://support.careerplug.com/engage-existing-employees#employer-forms)
- [Employee Retention](https://support.careerplug.com/engage-existing-employees#employee-retention)
- [Engage: Reporting](https://support.careerplug.com/engage-reporting#main-content)
- [Charts](https://support.careerplug.com/engage-reporting#charts)
- [Reporting](https://support.careerplug.com/engage-reporting#reporting)
- [Compliance](https://support.careerplug.com/engage-reporting#compliance)
- [Marketplace](https://support.careerplug.com/marketplace)
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