# Company Set-up & Users

> Platform settings, HQ Admin users, retail staff accounts, single sign-on and access control.

Part of the [Personalisation Hub Help Centre](https://personalisationhub.com/support-centre/?format=md).

- [Company Settings and Platform Admin explained](https://personalisationhub.com/support-centre/company-set-up-and-users/company-settings-and-platform-admin-explained/?format=md): Learn which settings live under Company Settings, which live under Platform Admin, and which article documents each page.
- [Add HQ Admin, Marketing and Helpdesk users](https://personalisationhub.com/support-centre/company-set-up-and-users/add-hq-admin-marketing-and-helpdesk-users/?format=md): Invite colleagues to HQ Admin as Admin, Marketing or Helpdesk users from Company Settings → Platform Set-up, and send them their password link.
- [Define target audiences and campaign objectives](https://personalisationhub.com/support-centre/company-set-up-and-users/define-target-audiences-and-campaign-objectives/?format=md): Add the target audiences (personas) and campaign objectives that every campaign brief and the AI agents draw on, under Company Settings → Campaign Settings.
- [Upload your brand guidelines for the AI agents](https://personalisationhub.com/support-centre/company-set-up-and-users/upload-your-brand-guidelines-for-the-ai-agents/?format=md): Give the platform's AI agents a PDF of your brand guidelines so the briefs, copy and creative they generate follow your look, feel and tone. Recommended before your first campaign.
- [Upload Retail Admin users for your stores](https://personalisationhub.com/support-centre/company-set-up-and-users/upload-retail-admin-users-for-your-stores/?format=md): Create Staff and Store_Manager accounts for every store by uploading a CSV under Company Settings → Retail Admin Set-up, then share the login link.
- [Integrate single sign-on (SAML) for store staff](https://personalisationhub.com/support-centre/company-set-up-and-users/integrate-single-sign-on-saml-for-store-staff/?format=md): Let store staff and managers sign in to Retail Admin through your organisation's single sign-on by raising a SAML integration ticket with support.
- [Sign in to the Retail Admin site (no SAML/SSO)](https://personalisationhub.com/support-centre/company-set-up-and-users/sign-in-to-the-retail-admin-site-no-saml-sso/?format=md): Sign in to the staff tablet (Retail Admin) with your email address and first-time password, then set your own password.
- [Add custom menu links (CTA settings) to HQ Admin and Retail Admin](https://personalisationhub.com/support-centre/company-set-up-and-users/add-custom-menu-links-cta-settings-to-hq-admin-and-retail-admin/?format=md): Add your own links to the HQ Admin or Retail Admin left-hand menu, show or hide the log-out button and back-link, and set the default Retail Admin profile image.
- [I can't sign in to the platform](https://personalisationhub.com/support-centre/company-set-up-and-users/i-can-t-sign-in-to-the-platform/?format=md): Work through the 5 most common reasons a Personalisation Hub sign-in fails, from the wrong login page to an expired invitation link.
- [I see an Access Denied error](https://personalisationhub.com/support-centre/company-set-up-and-users/i-see-an-access-denied-error/?format=md): An Access Denied page means your IP address is blocked, either by the platform's IP restrictions or by your organisation's CDN. Here is how to tell which and fix it.