Problem searching for orders using API by auxiliary field

I make requests for a sample of orders through the API. I'm having trouble searching with an additional field. Here is an example of my query: http://myboxurl/api/orders/get/?login=****&password=********&cdate=2024-03-01&customorder_[Key22]=Value This query considers only data related to the date, ignoring the additional field. Is it possible that the problem lies in the query itself, or is it possible that the API is missing a method to implement a search using this field? When analyzing in the middle of the API, it was found that there is no method to search using an additional field. When accessing the database, only the date in the WHERE query is taken into account. Maybe someone has dealt with a similar situation and can advise how to solve this problem? Are there other methods or approaches to search using additional fields via the API? Any help or advice would be greatly appreciated! Thank you!