Are you set up in company 3 with a Person record? Or are you a Global User only? I'm not sure if this makes a difference but it's worth checking. CompaniesBlock is a global block, independent of the company number.
are the activity set as Hansamanuals said?
https://www.hansamanuals.com/main/mailnumber___62526/theconf___231/manuals/version___20250224/langcode___es/hwconvindex.htm?shortcode=HW0301SETTINGS_Order...
SendWebRequest3 is a boolean function, so if this returns true and the reply header has an accepted status, you can assume that the data was sent successfully and perform some actions on the record th...