Identifier settings are included into FORMAT SETTINGS, in the section "identifiers":

FORMAT

Values in the table of SETTINGS

OBJECT_ID id of SUBSCRIPTION or TEAM
OBJECT_TYPE SUBSCRIPTION or TEAM
CODE_ID IDENTIFIERS.CASE or IDENTIFIERS.USER

SETTING VALUE FORMAT:

list: list of elements
- label: element from CODE OBJECTS table
- prefix: A description retrieved from the OBJECT CODES. Example of possible values: PROGRAM.CODE, TEAM.CODE, SYSTEM.COUNTRY...
- format:
  - mask: (See jQuery Mask Plugin)
  - validation (usually it is a regular expression string)
combinations: list of mandatory combinations. (The entry must fit in at least one of the combinations)

NOTE: For future versions it may also exist a list of "forbidden combinations" meaning fields that cannot be filled jointly

{
  "list": [
    {
     "label": "STUDY_REF",  //This is an example of a study code using a program & team prefix
	 "prefix": ["PROGRAM.CODE","TEAM.CODE"],
      "format": {
        "mask": "AAAAAAAA",
        "validation": "^[a-zA-Z0-9_.]*$"
      }
    },
    {
      "label": "NAT_ES",   //This is a Spanish National ID
      "format": {
        "mask": "(A\/N)NNNNNNNA",
        "validation": "^([XYZ]{1}[0-9]{7}[TRWAGMYFPDXBNJZSQVHLCKET]{1}$)|(^[0-9]{8}[TRWAGMYFPDXBNJZSQVHLCKET]{1}$)"
      }
    },
    {
      "label": "PASS",
      "format": {
        "mask": "NNNNNNNNN(N)",
        "validation": "^[0-9]{9,10}$"
      }
    },
    {
      "label": "DRIV_ES"
    },
    {
      "label": "INS_GOV_ES_CAT"
    },
    {
      "label": "INS_GOV_ES_EUSK"
    },
    {
      "label": "MRN_ES_CRUCES"
    },
    {
      "label": "MRN_ES_CLINIC"
    }
  ],
  "combinations": [
    [
      "INS_GOV_ES_CAT"
    ],
    [
      "NAT_ES",
      "INS_GOV_ES_CAT"
    ],
    [
      "PASS",
      "INS_GOV_ES_CAT"
    ],
    [
      "NAT_ES",
      "PASS",
      "INS_GOV_ES_CAT"
    ]
  ]
}

IDENTIFIER SETTINGS LIST - Examples
STUDY_REF	{ "label": "STUDY_REF", //This is an example of a study code using a program & team prefix "prefix": ["PROGRAM.CODE","TEAM.CODE"], "format": { "mask": "AAAAAAAA", "validation": "^[a-zA-Z0-9_.]*$" } }
NAT_ES	{ "label": "NAT_ES", //This is a Spanish National ID "format": { "mask": "(A\/N)NNNNNNNA", "validation": "^([XYZ]{1}[0-9]{7}[TRWAGMYFPDXBNJZSQVHLCKET]{1}$)\|(^[0-9]{8}[TRWAGMYFPDXBNJZSQVHLCKET]{1}$)" } }
PASS	{ "label": "PASS", //Passport number "format": { "mask": "NNNNNNNNN(N)", "validation": "^[0-9]{9,10}$" } }
DRIV_ES	{ "label": "DRIV_ES" //Spanish driver license number }
INS_GOV_ES_CAT	{ "label": "INS_GOV_ES_CAT" //Catalan public health id number }
INS_GOV_ES_EUSK	{ "label": "INS_GOV_ES_EUSK" //Vasque public health id number }