Enforce Constraints on Data Table. Failed to enable constraints. One or more rows contain values.

Thank you, that's an interesting problem. The fact is that there is no easy way, as far as I can see, to override the settings that ExecuteSql will use; and by default it seems to expect some database constraint to be respected. Unfortunately it's also hard to figure out which constraint is failing, in a query this big -- and it's puzzling that it seems to work fine elsewhere.

For your immediate needs, there is a simple workaround. Configure your query as a SQL Data Adapter, using custom variables where necessary, then use BRApi.Dashboards.Process.GetAdoDataSetForAdapter to execute it from a rule. That should get the job done.

Beyond that, if you want to get a different resolution (e.g. a better error message, or a change in api to allow extra parameters like this to be passed to ExecuteSQL), then you can open a case with Support and work with them. This might take some time though, and because it's about a custom operation on the api, they may or may not provide a resolution.