The Perspectium DataSync Express requires, at a minimum, read access to the attachment tables (sys_attachment, sys_attachment_doc, sys_attachment_doc_v2, etc). Modifying the table access will allow attachments to be sent when sharing records.
Prerequisites
First, you will need to install the Perspectium DataSync Express application.
Procedure
To modify table access, follow these steps:
Navigate to the Attachment Document record
In ServiceNow's left side navigation window, navigate to System Definitions > Tables. Filter the table by searching for the name sys_attachment and click the record.
Add access to application scopes
Navigate to the Application Access tab. Please ensure this table is accessible from All application scopes. Then, click the Can read checkbox and Update the record.
Repeat steps for sys_attachment_doc tables
Update the access for the sys_attachment_doc and if they exists, any other sys_attachment_doc tables like sys_attachment_doc_v2.