Update a custom field on all Entities with same expiry date

[Bob_be]

Here is one of the topics I found that explains it:

Age Verification or 18+ reminder with calendar

Sure. Use this formula: [=FD(ADM('{TICKET DATE}',-216),'dd/MM/yyyy')] ADM function adds Months, so 18 years x 12 months = 216 months. In this case I used -216 (negative) to subtract months from current ticket date. This is 1 solution that could be modified to suit your needs. [image] [image] Ensure you add a Default mapping to the following Rule: [image] MessageToDisplay: Customer must be Born on or before this date: [=FD(ADM('{TICKET DATE}',-216),'yyyy-MMM-dd')] [image]