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If there are already users in Yokoy and then initial sync can’t be used, you must map them to the users in SAP. The mapping is done using the UUID from the SAP Business ByDesign employee (without hyphen '-'). This information can be imported in Yokoy either manually or via a POST request. If you use a post request, you need to update the field customerinformation.exernalId. For more information check https://docs.yokoy.ai/#tag/User/paths/~1users~1%7BuserId%7D/patch.
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