"Can't specify an external sharing model for Custom_Object__c" ERROR when attempting to install MassMailer package
MassMailer Team
started a topic
about 5 years ago
If you see the error, "Can't specify an external sharing model for Custom_Object__c" when attempting to install MassMailer package in an org where External Sharing is disabled, please follow the instructions at the following link to rectify the same.
MassMailer Team
If you see the error, "Can't specify an external sharing model for Custom_Object__c" when attempting to install MassMailer package in an org where External Sharing is disabled, please follow the instructions at the following link to rectify the same.
https://success.salesforce.com/issues_view?id=a1p3A000000mDGlQAM&title=can-t-specify-an-external-sharing-model-for-custom_object__c-when-attempting-to-install-a-package-in-an-org-where-external-sharing-is-disabled
This is an issue reported to Salesforce and would be fixed for Spring 18 release as per the note by Salesforce.