Hi Estanislao,
This is to confirm that I have received the logs and have already performed my investigation.
Upon checking, the
status attribute is
output only, and with this, it would be ignored when passed in any mutate requests. As you may also see in this
example for creating a campaign budget, this attribute is also not included. In addition, since the said attribute is output only, specifying the
response_content_type: MUTABLE_RESOURCE would still not return this in a mutate request as the attribute is not a mutable one.
If you wish to query all the attributes of your campaign's budget, you may use the
campaign_budget view instead. I hope this helps.