Crowd workforce - Partner registration - Idoc generated in status 51 with no error in logs

[spiderteam_spiderteam]

HI team,

I have started to set the Crowd workworce functionality on sandbox environment.

I followed all the required steps. I sent an invitation to dummy partner (myself) and then register.

The inbound IDoc type /PACG/ECM_ITYPE_BUSPART_IN is generated but failed with no error in logs (please see screen shot). Do you have any suggestion ?

Regards

Brice