Custom Field questions & problems, and a question about mass mailing

Hello!

When I set up a new custom field, I find there are some problems, they are:
1) When I set up a 'required' custom field which is used to upload file, I can see the label of the field is red-starred but event doesn't select any file, it is still able to save without any warning. It seems that the validation is only working for checking the file type extension. Is it normal? or bug?
2) While someone uploaded a file, is it possible to remove the this file field content? That means make the input blank.
3) Excepting the case 1 I mentioned above, after I set up the form with new 'required' custom fields, in frontend the validation of the form works properly, in backend section of "Subscription" it works properly, but in backend section of "Subscribers" the validation of 'required' field fails to check and save all directly without any warning. Again, is it normal? or bug?
4) After adding custom fields, is it possible to include those data fields to be searched?
5) For "Fixed Expiration Date", is the date (e.g. 2021-12-31) included or excluded? For example, I want a subscriber purchase the plan and he could not access again after 2021-12-31. Which should I set to the expired date stated in the plan, 2021-12-31 or 2022-01-01? 

Also, since my website has over 3000 existing members, and their subscriptions will sharply expire on 31-March in next year, I know there is notification function and I want to use it. However, it is easy to know that the hosting service provider will not allow sending thousands of email at the same time. I want to know how the notification function of the system works. Will it queue the mail? Or just sending out at the same time? Is it any possible way to use a third party extension or plugin to handle the notification automatically?

Looking forward to your reply. Thank you! 

Hello

1. Where do you can save the record without uploading the file?

2. When it should be blank, please? Could you please explain more details about it?

3. To be honest, I do not pay much attention on subscriber backend. That section mostly, is used to view summary subscriptions for each subscriber only. If you want to update data, better go to Membership Pro -> Subscriptions, edit the subscription and change data from there

4. Where do you want it to be searchable? if it is from subscriptions management, then there is a tool membershipprodoc.joomservices.com/tools#...-sort-and-searchable

5. Included, so set it to 2021-12-31

The system does not send notification all at a time. Each time, it only sends 20 subscriptions at a time, until all reminders are sent. You can setup cron job to make reminder more reliable if needed, see membershipprodoc.joomservices.com/basic-...eminder#use-cron-job

Regards,

Tuan

1) Please see the attached image. The problem is: The file select field is set to "required". It work perfectly for other input. However, no matter subscriber select or not a file, it will be saved without any check to the file field.

This is the validation situation while some fields are set "required"
 

This is another situation while other required field are filled. No error msg comes out and can be saved without any warning.


This situation happens both on frontend and backend. It seems like a bug.

2) What I mean: Is it possible to remove "test.jpg" at this interface? For example: Sometimes maybe wrong file, subscriber wants to remove it and upload later but he has already saved and uploaded. How could he remove it?
 

3) It is fine. Then I will advise our workmates focusing on subscription rather than the subscriber section.

4) Yes, for management search only. I will study it first then.

5) Thanks!

Final) Thanks!