The order in the MODEL statement doesn't matter. The DID estimate on the log odds scale is just the interaction estimate as discussed in the note. It is shown by default in the Parameter Estimates table, so there is no need for an ESTIMATE, LSMEANS, or LSMESTIMATE statement. For the estimate on the probability scale you need the NLEstimate macro, which you need to download from the link I provided and then run the macro code to make the macro available before you can call it. This is discussed in the Usage section in the macro documentation at that link. You then need to use the names for the model parameters (of the form B_px) as shown in the example in the Results tab of the macro documentation.
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