Error message: "User does not exist at FriendlyDisplayName"

[HarryAdney]

Hi all,

Just tried manually adding a new client and this error message displayed.

"Customer modification for User redacted@redacted failed: User does not exist at FriendlyDisplayName (585713) - User ID: redacted"

Obviously, I added the "redacted" text 😐

[WHMCS Lawrence]

Hello,

This is not an error from WHMCS itself, but rather a customisation that is installed. The first thing to try is temporarily removing any customisations that may be interfering with the normal operation of WHMCS such as addons and action hooks. These are located in the /modules/addons and /includes/hooks directories. You may also have a /modules/admin directory if you've used earlier versions of WHMCS. When the problem stops you should contact the vendor of the offending addon for support regarding their code.

[HarryAdney]

Hi Lawrence,

Thanks for getting back to me. I'll do that.