Issue #3375393 Improved method documentation

src/Plugin/EntitySync/FieldTransformer/Address.php

@@ -73,6 +73,10 @@ class Address extends PluginBase {
   /**
    * Transforms a Drupal address property to an Acumatica field property.
    *
+   * In addition to the standard conversion to a `value` array, it converts
+   * postal codes (currently for US and CA) to pass Acumatica's postal code
+   * validation.
+   *
    * @param array $address
    *   The address field property array.
    * @param string $property