Among the handwritten signature, another way how to sign document is via OTP. OTP can be sent via:
- E-mail – openOtpEmail
- SMS – openOtpPhone (signature Request package with SMS addon is requested)
OTP is sent to the email or telephone number after opening the signature acrofield.
Note: OTP signature requires signature acrofield and disabled signAnywhere function (signAnywhereEnabled-false). Its recommended to use allowedFields and enable only one signature acrofield.

{
"rules": {
"signOtpEmail": "email@adress.com",
"signAnywhereEnabled": false
},
"allowedFields":{"SIGNATURE":"_SO1_"},
"filedata": {
"content": "xyz_JVBERi0xLjc=="
}
}