diff --git a/catalogue-binding-plugin/README.md b/catalogue-binding-plugin/README.md
index 4b9aa65..e3041d0 100644
--- a/catalogue-binding-plugin/README.md
+++ b/catalogue-binding-plugin/README.md
@@ -44,16 +44,21 @@ The "Catalogue Binding Plugin" requires a handler registered in the UCD so defin
 }
 ```
 
-where:
+About the config:
+
+the "event" part.. `"event": "{EVENT_1}",` is mandatory:
 
 * `{EVENT_X}` (mandatory) - can be ```PROJECT_CREATED, PROJECT_UPDATED, PROJECT_DELETED, LIFECYCLE_STEP_PERFORMED```
+
+the "when" part.. `"when": [{...}]`, is optional:
+
 * `{TARGET_PHASE}` (optional) - can be: `DRAFT`, `Pending Approval`, `Published`, `Any`;
 * `{LAST_INVOKED_STEP}` (optional) can be: `SUBMIT-FOR-REVIEW​`, `APPROVE-SUBMITTED`, `REJECT-DRAFT​`, `UNPUBLISH`;
 
-and `{FREEMARKER_TEMPLATE_HOST}` is the host  where the FREEMARKER_TEMPLATE.ftl is located  and the `{FREEMARKER_TEMPLATE_NAME.ftl}` is the (complete) path to the FREEMARKER_TEMPLATE.ftl file. 
+the `{FREEMARKER_TEMPLATE_HOST}` is the host  where the FREEMARKER_TEMPLATE.ftl is located  and the `{FREEMARKER_TEMPLATE_NAME.ftl}` is the (complete) path to the FREEMARKER_TEMPLATE.ftl file. 
 The template pointed by `{FREEMARKER_TEMPLATE_HOST}/{PATH_TO_FREEMARKER_TEMPLATE_NAME.ftl}` URL is applied to transform a Geoportal project to Catalogue Item object.
 
-NB. The configuration must contain the `{TARGET_PHASE}` and `{LAST_INVOKED_STEP}` when the `{EVENT_X}` is equal to `LIFECYCLE_STEP_PERFORMED`
+NB. The configuration must contain the "when" part with `{TARGET_PHASE}` and `{LAST_INVOKED_STEP}` if the `{EVENT_X}` is equal to `LIFECYCLE_STEP_PERFORMED`
 
 ## Change log
 See [CHANGELOG.md](CHANGELOG.md).