https://www.wikidata.org/wiki/Help_talk:QuickStatements#Using_the_API_to_start_batches_-_%22You_need_to_have_submitted_at_least_one_server-side_batch_manually_before_for_this_to_work!%22 

I dont know if this is the right way to notify people, but this open question I hope to get resolved.

Thanks a lot in advance for your input.
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