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ref:b_i:applicability_rules_is_defined [2026/08/13 00:42] – removed - external edit (Unknown date) 127.0.0.1ref:b_i:applicability_rules_is_defined [2026/08/13 07:11] (current) – external edit 127.0.0.1
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 +{{tag>Known_Issues, Issue:}}
  
 +<invisible> This is the template for known issues pages - add a tag to Issue: to allow this to show on the tagged page</invisible>
 +
 +==== Applicability Rules & IS UNDEFINED ====
 +<row>
 +<col size="1"><invisible> This is a spacer column</invisible></col>
 +<col size="5">===Problem/Limitation Description===
 +
 +Using ''IS UNDEFINED'' in an applicability rule will not have the expected results when the attribute is a reference attribute.
 +<code aim>Event.Organiser IS UNDEFINED</code>
 +
 +</col>
 +<col size="1"><invisible> This is a spacer column</invisible></col>
 +<col size="5">===Work Around===
 +
 +Refer to an attribute on the reference attribute instead
 +<code aim>Event.Organiser.ID IS UNDEFINED</code>
 +
 +</col>
 +</row>