Issue

Non-admin users that launch Conga Composer in a Salesforce orgs without My Domain and that have accepted the Require Customize Application permission for direct read access to custom settings Salesforce Critical Update will incur the error message below. Error message: Have your system administrator access Composer in this org to enable the custom settings to be read and migrated to a location which can be accessed going forward.

The error stems from incompatibility with the aforementioned Salesforce Critical Update and the running Composer user's permission to access the Composer Settings custom settings. This error only occurs if there has not been a Composer merge since accepting the Require Customize Application permission for direct read access to custom settings Salesforce Critical Update.

Workaround

To resolve this error, contact the Salesforce's org system administrator and have them launch Conga Composer. Launching Conga Composer as a system administrator enables access to the Composer Settings custom setting for all non-admin Composer users.