In my community I have enabled self-registration option. It works fine, however, I would like to update some fields on the related contact record (e.g. Mailing Address) when the community user is created (through self-reg). I tried to do it using Apex trigger on User with trigger event "after insert". Unfortunately, the trigger blocked my self-registration process and community admin has received the following error:
There was an error in registering a user in site My_Community. The error message is: CommunityUpdateContactTrigger: execution of AfterInsert
caused by: System.DmlException: Update failed. First exception on row 0 with id 003V000000Vr9xpIAB; first error: CANNOT_EXECUTE_FLOW_TRIGGER, The record couldn’t be saved because it failed to trigger a flow. A flow trigger failed to execute the flow with version ID 301V00000005qyS. Flow error messages: An unhandled fault has occurred in this flow
An unhandled fault has occurred while processing the flow. Please contact your system administrator for more information. Contact your administrator for help.: []
The Apex trigger looks as follows:
trigger CommunityUpdateContactTrigger on User (after insert) {
if (Trigger.isInsert) {
List contactIds = new List();
List users = Trigger.new;
for (User u : users) {
if(!String.isBlank(u.ContactId))
contactIds.add(u.ContactId);
}
if (!contactIds.isEmpty()) {
Contact[] contacts = [SELECT MailingCity, MailingCountry
FROM Contact
WHERE Id IN :contactIds];
for (Contact c : contacts) {
for (User u : users) {
if (u.ContactId == c.Id) {
c.MailingCity = u.City;
c.MailingCountry = u.Country;
}
}
}
update contacts;
}
}
}
I checked how the trigger works when the community user is created by internal user inside the org (new Contact -> Manage External User -> Enable Customer User ...). It turned out that it works fine: after saving a user, Contact fields specified in the trigger were updated. My first assumption is that there might be a problem with permissions of the user performing self-reg. From what I know, during self-registration we are logged in as a default site's guest user with a Guest License. This user has Create/Edit access on Contact object.
