Hi there @Peticured. I just checked the customer profile fields that Square supplies and alternate phone number is not one of those. (See screen shot for the list of the only Square supplied fields.). So, I’m guessing that you had to have created that — or someone in your organization did. As such, there would be no way to search on that in the POS right now.
Also, loyalty was built to only use one phone number. There can be many credit/debit cards tied to a loyalty account to recognize a loyalty customer — but only one phone number.
As far as I know, the only search options available on POS (for anything customer related) are name, phone, email and possibly last 4 digits of card. To have anything else would necessitate you submitting a feature request.
Chip A.
Square Expert & Innovator and member of the Square Champions group. (But NOT a Square employee, just a seller like you)
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