Hey, we are regulary having problems with SFCD-Sandbox PartialCopy refreshes, since those also copy over internal, BillingEntity-related zuora-stuff. Regarding your statement " Once you confirmed the sandbox org and sandbox tenant connection is correct, you can do a cleanup from your Zuora sandbox tenant. After the cleanup, you can try to do a manual sync from your sandbox tenant." We had luck with doing: - Zuora Cleanup Accounts - Zuora Cleanup Products - SFCD Products - delete every remnant - Zuora Full-Sync Products - Zuora Full-Sync Accounts Good luck.
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