Adding Landing Page Details to Salesforce Custom Field

You can do it now using a filter (see other notes for details).

I’ve been meaning to add some tokens that get auto replaced like %%URL%% %%POST_ID%% etc for some time. It might be time to include those…

I see the code to override the lead_source, but how do you apply the filter to override a custom field? We have a custom field called Details. How can I use filters to target that field? From the docs I only see:

// Alter Lead Source
add_filter( 'salesforce_w2l_lead_source', 'salesforce_w2l_lead_source_example', 10, 2 );
function salesforce_w2l_lead_source_example(  $lead_source, $form_id ){

    if( $form_id == 1 )
        return 'Example Lead Source for Form #1 on page id #'.get_the_id();

    return $lead_source;

}

See the Other Notes section of the Read Me:

salesforce_w2l_field_value

salesforce_w2l_field_value_{Form ID}_{Field Name}

Allows you to filter the value of a field before it is output to dynamically populate it with a value, auto set it based on another value, etc.

Note that the second filter requires you to replace {Form ID} and {Field Name} to be replaced with the relevant form id and field name.