Error when trying to download AWS Opensearch plug-in from Appian Appstore

Hello,

We are connecting both appian and AWS. will upload documents from appian side and in aws will extract and store the data. Now to populate data in  Appian to establish a connection found a "AWS Opensearch".plugin. When trying to download getting an error stating "This app is available to download for Appian Customers, Partners, and Employees. Please make sure to self-associate from your profile". Can someone guide me what needs to be done from my end to use this plugin. Or any restrictions for using this plugin what other approach i can take to get the data using opensearch service

Regards,

Chaithra