Symptoms

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Catalog UI policies do not work when variable sets have the same name as the variable.

Release

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London

Cause

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The Internal name for Variable Sets has been added in the London release, it should not have the same name as any Variable associated to that set.

Resolution

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Change the Internal name of the Variable set to something other than its variable name.

Script to find affected variables:

var variables = new GlideRecord('item_option_new');
variables.query();
while(variables.next()) {
  var varSet = variables.getValue('variable_set');
  var varName = variables.getValue('name');
  if (!varSet)
    continue;
  else {
    var varSetGr = new GlideRecord('item_option_new_set');
    varSetGr.addQuery('sys_id', varSet);
    varSetGr.query();
    if (varSetGr.next())
    if (varSetGr.getValue('internal_name') === variables.getValue('name'))
    gs.print('Variable name and Internal name of the variable set are the same for ' + varName);
  }
}

Additional Information

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KB0712554 - The Variable value will not be saved if the Variable name is the same as Variable Set Internal name
Documentation - Service Catalog release notes