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Checking registration of custom action
Error An error means there was either no registration of the application or communication failed with the app web.
Regarding registration of the application ( see also last Section section of SharePoint: Deploy Add-in package to the App Catalog (v 1.17) requiring requiring to register the app with the correct Client ID, Confluence host and provider url), communication failed .
Reasons for failing communication with the app web . Reasons for the later can be:
- Missing DNS entry for app web host name pointing to the SharePoint farm - see DNS part of of Preparing the SharePoint Add-in Infrastructure (v 1.17)
- Certificate not accepted by browser, e.g. missing in the certificate of the SharePoint farm - see HTTPS part of of Preparing the SharePoint Add-in Infrastructure (v 1.17)
Checking assets library and loader file
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