# Rule creator UI The rule creator UI allows advanced rules to be created based on business need .The below guide will help users create advanced rules The below screenshot shows the UI of the rule creator view ![](/files/-LNq7IS-Q-LAsBgEnrc3) **AND / OR operator (1)** - The 'AND' , 'OR" operator defines whether you want the rules to be AND'ed or OR'ed **Add Rule / Add Group (2)** Add rule - Adds a single rule ( for eg: Invoice overdue by 10 days) Add group - Allows you to add a rule group containing multiple rules within **A Single Rule (3)** - A single mathematical rule ( for e.g. Amount > 100 ) Item 3 shows an example of a rule added in the rule creator ( invoice amount greater than 1000) **A Rule group (4)** Item 4 shows an example of rule group ( invoice due in 5 days OR Invoice overdue by 10 days ) ### --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.payorcrm.com/setting-up-invoice-reminders/creating-rules.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.