Which number to enter as gift registry number on Gift Registry screen after linking the item to gift

In user guide it is mentioned that 'Oracle Retail Point-of-Service only captures the Gift Registry number. The retailer is responsible for setting up the Gift Registry'. But how to set up gift registry in POS.

On Gift Registry screen POS is asking for 'Enter a gift registry number'. It is not accepting any numbers and when we try to enter some random numbers it is going to 'Info. Not found' screen.

Could someone please suggest is there anyway to track the gift registry number from db? And how can we achieve this functionality working in POS 14.1.2 version.

Thanks & Regards,

Naveen