celiagarridoh on POST Sigfox data in ThingSpeak

Hi again,

I found the error! You were right, it was just a sintax error so the request wasn't right. As I am new using HTTP calls it seemed abstract for me. Thank you!

Besides, this webpage was really useful for me: An-Introduction-to-ThingSpeak

Just in case anyone has the same trouble, I leave here what worked for me:

[POST] http://api.thingspeak.com/update?api_key=WRITE_API_KEY&field1={yourData}