Page Comparison

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string[] statuses = {"Opened", "Reopened"};
string errorMsg = "Parent issue should have status Opened or Reopened!";
if(!isNull(parent) && !elementExists(statuses, parent.status)) {
   return false, errorMsg;
}

Validation

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The below example shows a SIL validator which forces a custom field to be required in resolve screen only if the resolution was set to 'Fixed':

string errorMsg = "To resolve the issue as 'Fixed' you should give a value to field 'Color'."; 
if(!hasInput("customfield_10000")) { 
	return false, "customfield_10000", errorMsg; 
}

Validation on linked issues

Blocking Start Progress transition whenever current issue has a link of type Blocks with an issue in a status different from Resolved and Closed:

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