Issue on applying Apple Pay to our Flutter app


We followed the instruction of applying Apply Pay to our iOS app, including download and upload the Square certificate, but we get this error when we trying to get the token.

ErrorInfo {
message=Something went wrong. Please contact the developer of this application and provide them with this error code: unexpected,
debugMessage=Square In-App Payments SDK encountered an unexpected error. Please contact Square developer support via ,

We couldn’t find any useful information from the error, can you please help us to solve it?

Our app id: sq0idp-JlogjOwvnkjWIjwdaK1BAw
iOS merchant id:

Do you have the location_id and the time that this error happened? Also are you able to replicate this easily? :slightly_smiling_face:

location_id: LNF77AQDB3CP6
time: 2023-01-20 06:46:08.466363Z

It can be triggered everytime.

any update on this issue?

Hey @wsdzy2010, we’re checking with the team on this, but no new updates yet.

Hi Josh,

If any new update, please let us, this issue currently blocks our development.

Apologies for the delay! It looks like this is an error that actually comes from Apple, and indicates an Apple Pay certificate mismatch. Can you attempt the certification verification again?