diff --git a/macros/fee_model_macro.sql b/macros/fee_model_macro.sql
index 0c767eb..db1a295 100644
--- a/macros/fee_model_macro.sql
+++ b/macros/fee_model_macro.sql
@@ -1,3 +1,11 @@
+/*
+
+We have different tables computing fees for different line items coming.
+
+The only difference between these tables is what Xero Line Items are we looking
+into. To avoid copying the same logic multiple times, we created this macro.
+
+*/
 {% macro generate_xero_net_fees_model(item_codes_to_include) %}
 
     {% set relevant_document_statuses = "('PAID', 'AUTHORISED')" %}
diff --git a/macros/generate_schema_name.sql b/macros/generate_schema_name.sql
index d9bb818..c32da69 100644
--- a/macros/generate_schema_name.sql
+++ b/macros/generate_schema_name.sql
@@ -1,14 +1,18 @@
+/*
+This macro is necessary to allow different models to automatically be generated
+in schemas different than the default one for the target database.
+
+To understand better, check:
+- https://www.youtube.com/watch?v=AvrVQr5FHwk
+- https://docs.getdbt.com/docs/build/custom-schemas
+*/
 {% macro generate_schema_name(custom_schema_name, node) -%}
 
     {%- set default_schema = target.schema -%}
-    {%- if custom_schema_name is none -%}
+    {%- if custom_schema_name is none -%} {{ default_schema }}
 
-        {{ default_schema }}
-
-    {%- else -%}
-
-        {{ custom_schema_name | trim }}
+    {%- else -%} {{ custom_schema_name | trim }}
 
     {%- endif -%}
 
-{%- endmacro %}
\ No newline at end of file
+{%- endmacro %}