Linked comma-separated titles of related items when using ACF Relationship field

Scenario:

Custom post type: presentation

Related post type: speaker using ACF Relationship field

Requirement: Show the speakers for each presentation

Step 1

Install and activate Advanced Custom Fields.

Create a field group that has the relationship-type field for the primary post type.

Step 2

Edit your presentation (primary CPT) entries and populate the speakers custom field.

Step 3

Use the following code to show related speakers either in a template that applies to singular presentations or in the loop for presentations CPT archive: