Making parallel requests
All requests which create or update objects (for instance ProcessArticle, ProcessOrder or ProcessInOrder) are run sequentially by Ongoing WMS, on a "per goods owner" basis.
This means that if you make 100 parallel requests to create new articles for a particular goods owner, then Ongoing WMS will process the requests sequentially. This may cause the last calls to time out.
Therefore, we recommend that you make all API calls to Ongoing WMS sequentially.