Add ACF Repeater row after User Registration(Form Submission) [RESOLVED]

I am curious if this is a support question or something for the form but I will try my luck with both.

So I’ve enabled User Registration Gravity Form Add-on and I want a certain section to be added to a repeater field upon user registration/form submission.

In my functions I created this

add_action( 'gform_after_submission_6', 'set_post_content', 10, 2 );
function set_post_content( $entry, $form ) {
 
    //getting post
    $post = get_post( $entry['post_id'] );
 
    //change the 4 to your gravity form field number
    $caryear = rgar( $entry, '21' );
	
	#add the row to the repeater
	$row = array(
		'field_5aff6ca2a2def'	=> $caryear #this is your repeater subfield key
	);
	$i = add_row('field_5ac6602d483d7', $row, $post_id->ID); #this is the main repeater key
	
}

I also tried this but I don’t know exactly what I am doing

add_action( 'gform_user_registered_6', 'car_regs', 10, 3 );
function car_reg( $user_id, $feed, $entry ) {
   
    $user = new WP_User( $user_id );
	$userid = 'user_'.$user;
		
		
	$caryear = rgar( $entry, '21' );
	$post = get_post( $entry['post_id'] );
    
	#add the row to the repeater
	$row = array(
		'field_5aff6ca2a2def'	=> $caryear #this is your repeater subfield key
	);
	$i = add_row('field_5ac6602d483d7', $row, $userid); #this is the main repeater key
}

For more context of what I am trying to do is upon user registration(Form Submission), it adds an entry to their repeater form that is attached to their profile.

I’ve tried numerous of times but it does not work at all. I am very much stuck and don’t know if I missed something. Any help would be amazing!

According to ACF’s documentation for add_row the third parameter requires the id of the post where you want to save the value. So the second snippet where you’re using $userid doesn’t make any sense to me.

Are you creating a post with this form submission or are you trying to add the information to the post/page from where the form was submitted?

I actually already figured it out

add_action( 'gform_user_registered', 'add_custom_user_meta', 10, 4 );
function add_custom_user_meta( $user_id, $feed, $entry, $user_pass ) {
    $email = rgar( $entry, '3' );
    
    $user = get_user_by( 'email', $email );
    $userID = $user->ID;
    $userACF = 'user_'.$userID;
    
    $post = get_post( $entry['post_id'] );
    $caryear = rgar( $entry, '7' );
    
    $row = array(
        'field_5aff6ca2a2def'   => $caryear #this is your repeater subfield key
    );
    add_row('field_5ac6602d483d7', $row, $userACF); #this is the main repeater key
}