NSSAI configuration by AT command RM520

Hi all,

We are testing with RM520 module to set a specific NSSAI with AT+CGDCONT command, but we find ERROR code when we try to activate this context:

[2023-12-19 16:02:44:144_R:] at+cgdcont=4,“IP”,“thethinx.ndac.com”,0,“03.000002”,
[2023-12-19 16:02:44:144_R:] OK

[2023-12-19 16:03:17:583_R:] at+cgact=1,4
[2023-12-19 16:03:17:583_R:] ERROR

Could be the problem?

BR,
Salva

Any update, please?
BR,
Salva