How to simulate postings using API Journal Entry - Post (Synchronous)?

[SAPSupport]

I'm wondering if this functionality is even supported.

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[SAPSupport · Accepted solution]

Please see the point regarding 'TestDataIndicator' in the following documentation in this regard - https://help.sap.com/docs/SAP_S4HANA_CLOUD/b978f98fc5884ff2aeb10c8fdeb8a43b/f5c8d0579212c525e1000000...

The value for this field should be 'True' for simulation to take place