Report templates | Draft - Changes to report code mapping in practice to flow to client org
If you update the report code mapping on a report template and save it as a draft, the changes won't reflect on the draft template in the client’s organisation.
You either need to remove the report from your template and add it again, or run a fresh template in the client organisation.
Xero Product Ideas is where our customers can share and support ideas for change.
Above the answer for my problem - such an obvious issue, surely Xero, you can sort this out without waiting for folks to vote on it !!

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Gareth Burton commented
Xero have combined my idea with this post (see my other comment) and whilst I do think this idea is correct and needs looking at, I think it's a very different issue to the one I was flagging.