How to remove "Following errors occured String is to long" on job title ?

I don’t believe this is a WP Job Manager issue. How many characters are you trying to use for the title, 200?

I read here: https://wordpress.stackexchange.com/questions/89767/how-to-increase-the-character-limit-for-post-name-of-200

The suggested solution is to add the following code to the ‘custom functions’ area of your functions.php file (or use a plugin like **Functionality** – https://www.ads-software.com/plugins/functionality/):

// first of all lets remove standard hook
remove_filter( 'sanitize_title', 'sanitize_title_with_dashes' );

// add our custom hook
add_filter( 'sanitize_title', 'wpse8170_sanitize_title_with_dashes', 10, 3 );
function wpse8170_sanitize_title_with_dashes( $title, $raw_title = '', $context = 'display' ) {
    $title = strip_tags($title);
    // Preserve escaped octets.
    $title = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '---$1---', $title);
    // Remove percent signs that are not part of an octet.
    $title = str_replace('%', '', $title);
    // Restore octets.
    $title = preg_replace('|---([a-fA-F0-9][a-fA-F0-9])---|', '%$1', $title);

    if (seems_utf8($title)) {
        if (function_exists('mb_strtolower')) {
            $title = mb_strtolower($title, 'UTF-8');
        }
        $title = utf8_uri_encode($title, 1000); // <--- here is the trick!
    }

    $title = strtolower($title);
    $title = preg_replace('/&.+?;/', '', $title); // kill entities
    $title = str_replace('.', '-', $title);

    if ( 'save' == $context ) {
        // Convert nbsp, ndash and mdash to hyphens
        $title = str_replace( array( '%c2%a0', '%e2%80%93', '%e2%80%94' ), '-', $title );

            // Strip these characters entirely
            $title = str_replace( array(
            // iexcl and iquest
            '%c2%a1', '%c2%bf',
            // angle quotes
            '%c2%ab', '%c2%bb', '%e2%80%b9', '%e2%80%ba',
            // curly quotes
            '%e2%80%98', '%e2%80%99', '%e2%80%9c', '%e2%80%9d',
            '%e2%80%9a', '%e2%80%9b', '%e2%80%9e', '%e2%80%9f',
            // copy, reg, deg, hellip and trade
            '%c2%a9', '%c2%ae', '%c2%b0', '%e2%80%a6', '%e2%84%a2',
            // grave accent, acute accent, macron, caron
            '%cc%80', '%cc%81', '%cc%84', '%cc%8c',
        ), '', $title );

        // Convert times to x
        $title = str_replace( '%c3%97', 'x', $title );
    }

    $title = preg_replace('/[^%a-z0-9 _-]/', '', $title);
    $title = preg_replace('/\s+/', '-', $title);
    $title = preg_replace('|-+|', '-', $title);
    $title = trim($title, '-');

    return $title;
}

Please let me know how that goes! ??

Hi bryceadams.. Thanks for the reply. I tested your codes but its not working on my end. According to this code below, which I found on the inner core of the WP job board ( wp-content/plugins/wpjobboard/framework/Validate/StringLength.php ) and it says the maximum string ( $this->_max ) is 120.

class Daq_Validate_StringLength
    extends Daq_Validate_Abstract implements Daq_Validate_Interface
{
    protected $_min = null;

    protected $_max = null;

    public function __construct($min = null, $max = null)
    {
        $this->_min = $min;
        $this->_max = $max;
    }

    public function isValid($value)
    {
        $result = true;
        if(!is_null($this->_min) && strlen($value)<$this->_min) {
            $this->setError(__("String is to short", "wpjobboard"));
            $result = false;
        }

        if(!is_null($this->_max) && strlen($value)>$this->_max) {
            $this->setError(__("String is to long", "wpjobboard"));
            $result = false;
        }

        return $result;
    }
}

But I don’t know how to increase the $this->_max. Let’s say I want it to make 240 instead of 120. Anyway thanks for the help bro, very appreciated.

This is for WP Job Board and not WP Job Manager.

I would contact their support instead if you are looking for help with that plugin.

Kind Regards,
Scott