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Autogenerated IDs for crosswalks

Learn about autogenerated IDs for crosswalks representing different data sources.

Reltio can auto‑generate crosswalk values to uniquely identify source system references on objects when a crosswalk value isn't provided in an API request. For crosswalks, the auto‑generation logic is simpler than for attributes — it depends solely on whether a crosswalk of the same source type already exists on the saved object:

Crosswalk by type in saved objectReaction
NoGenerate a new crosswalk value
YesReuse the saved value.

This behavior applies both when creating new objects and when updating existing objects:

Crosswalk configuration

{  
   "uri":"configuration",
   "schemaVersion":"1",
  
   "sources":[  
      {  
         "uri":"configuration/sources/Auto",
         "abbreviation":"Auto",
         "label":"Auto",
         "autoGenerated":true,
         "generator":"UUID4_generator",
         "autoGenerationPattern":"Source_{value}"
      }
   ]
}

Table 1. Configuration parameters
ParameterRequired Description
autogeneratedYesSet to true to enable autogeneration for the crosswalk
generatorYesThe name of the generator to be used. For more information to how to create generators, see Adding Record ID Generators.
autoGenerationPatternYesThe pattern for values generated. For example, "Source_{value}".