Disable email template (eg. Invoice Generation Notification) for specific clients

[pKris]

We've run into a few clients who only want payment receipts, but do not want invoice generation emails (if fact they're pretty insistent on this) - I could, of course disable the invoice generation email entirely but they're the minority in our client group. I'm thinking I could accomplish this with a hook, but wanted to pass it to the community to see if anyone has also done this in their environment and if anyone had any tips from their experience..

[steven99]

Create a client custom field "Send Invoice Generation Emails".  In preemailsend hook, see if sending invoice generation email and then check if client sending to has the custom field set and take action as needed. 

[pKris]

Thank you for the input that's exactly what I'd created while I waited for a response, actually:

 

<?php

add_hook('EmailPreSend', 1, function($vars) {
    $merge_fields = [];
    if ($vars['messagename'] == 'Invoice Created' && $vars['email'] == 'email@domain.org') {
        //Stop the email from sending a specific message and related id.
        $merge_fields['abortsend'] = true;
    }
    return $merge_fields;
});

 

However it didn't work so I'm just debugging that now.

Edited October 6, 2021 by pKris

[aperture]

On 10/6/2021 at 10:21 PM, pKris said:

Thank you for the input that's exactly what I'd created while I waited for a response, actually:

 

<?php

add_hook('EmailPreSend', 1, function($vars) {
    $merge_fields = [];
    if ($vars['messagename'] == 'Invoice Created' && $vars['email'] == 'email@domain.org') {
        //Stop the email from sending a specific message and related id.
        $merge_fields['abortsend'] = true;
    }
    return $merge_fields;
});

 

However it didn't work so I'm just debugging that now.

Hi,

Your second conditional is $vars['email'] == 'email@domain.org', the issue is that $vars['email'] does not exist. Take a look at https://developers.whmcs.com/hooks-reference/everything-else/#emailpresend you will see that the hook has 3 variables in $vars = messagename, relid and mergefields.

Say I want to solve this for 1 specific user, say user "234"

if ($vars['messagename'] == 'Invoice Created') {
	$userID = Capsule::table('tblinvoiceitems')
    ->where('tblinvoiceitems.invoiceid', $invoiceID)
    ->value('userid');
	
	if ($userID == 234) {
		$merge_fields['abortsend'] = true;
	}
	return $merge_fields;
}

If you have multiple users who does not want invoice emails, it might be best to create a customField. Then you can check for the customFIeld value instead of hardcoded email domains or userid.