Registry document

The registry names the modules an org may import into, in creation order. An expression that references an earlier module resolves inline; a reference to the module’s own record or a later module becomes a post-save patch.

{
  "modules": [
    { "key": "accounts", "apiName": "Accounts", "label": "Accounts", "singular": "Account", "defaultEnabled": true },
    {
      "key": "contacts",
      "apiName": "Contacts",
      "label": "Contacts",
      "singular": "Contact",
      "defaultEnabled": true,
      "seedMappings": { "Account_Name": { "mode": "expression", "transform": "rec.Account.id" } }
    }
  ],
  "expressionContext": "rec",
  "dateFormat": "DMY",
  "apiDelayMs": 200
}

Field	Meaning
key	Stable identifier used in templates and state. Lower-case.
apiName	The destination’s module name.
singular	The name formulas use: rec.<singular>. Must be an identifier.
defaultDuplicateCheck	The match rule a new job starts with.
excludedFields	Fields this module’s import authors itself; never offered for mapping.
seedMappings	Mappings placed on every new job where the field has none.
expressionContext	The record context name in formulas. Default rec.
dateFormat	How ambiguous numeric dates are read: DMY, MDY or YMD.