Substitution rule object.

The method initializes a new substitution rule.

After entering the information, you need to save the rule by calling the ReplacementRuleItem.save method.

// Create a  substitution rule for the employee 
const rule =  System.replacements.rules.create(); 
rule.data.__name = 'Rule';  
rule.data.absent = Context.data.__createdBy; 
rule.data.replacement =  Context.data.substitution; 
rule.data.filter = { 
  query: `[__name] =  ${Context.data.taskName} or [dueDate] < @p1`, 
  params: { p1: new Datetime ('2025-10-01T10:10:10') }, 
}; 
await rule.save(); 

The method allows you to search for substitution rules.

The Search object is used to retrieve collection items:

const rules = await System.replacements.rules.search()
    .where (r => r.absent.eq(Context.data.absent_user)) 
    .all();