“POS LU ERR A3 102” is an error resulting from an expired or absent TSYS Gen Key. Sometimes Gen Keys need to be re-acquired to resolve this error. Follow the steps below to update the TSYS Gen Key:
1 Login to PSCS.
2 Click "Change Activated Stage File" from the Main Menu.
3 Search for the deployment you want to edit. Click "Select" next to the deployment you want to edit.
4 Check "Yes" for the "Acquire Generated Key" radio button.
5 Click "Continue".
6 Click "Return to Main Menu" once the deployment is saved.
7 Reload Parameters.
