Luis Rock

Master IDs plugin offers an easy way to find any post type ID. You just need to choose the post type wanted (page, post or any custom post type) and you will see all posts related, with the their respectives Titles and IDs, in a dropdown list.
Master IDs is also great for showing how many posts you have under each Post Type.

Master IDs

Find any post type ID (Post, Page or CPT) in a dropdown list.

KLicheR

Create a unique ID to easily identify repeater field’s rows. The field is fulfill on the first “save” of the post.
Compatibility
This ACF field type is compatible with:
<ul>
<li>ACF 5</li>
</ul>

Advanced Custom Fields: Unique ID Field

Create a unique ID to easily identify repeater field's rows.

Master IDs vs Advanced Custom Fields: Unique ID Field