AMEX is declining transaction

[jim56]

I'm trying to bill an AMEX card provided by HP. It's being declined because AMEX is saying HP won't allow transaction thru Square. Anyone know why?

[JustinC]

Oftentimes, we're not given an exact reason for a decline for privacy and security reasons, just a general declined message that returns to our system by the card issuing bank. 

We suggest your customer reach out to AMEX or use another form or payment. @jim56

[jim56]

Thanks Justin. HP is telling me they will no longer allow AMEX transactions processed thru Square. My contact is trying to get more details to understand why.