Google Pay and other UPI platforms are rolling out a new feature that lets users create custom UPI IDs, similar to Paytm. The privacy-focused update allows people to mask their phone numbers or email IDs during transactions. Setting up a personalised ID is straightforward and can be done in just a few steps.Google Pay and other UPI platforms are rolling out a new feature that lets users create custom UPI IDs, similar to Paytm. The privacy-focused update allows people to mask their phone numbers or email IDs during transactions. Setting up a personalised ID is straightforward and can be done in just a few steps.