I’m trying to use an entity_lookup process plugin inside an entity_generate process plugin. The YML looks like this

field_validation:     plugin: entity_generate     access_check: false     entity_type: node     source: validation_name     value_key: title     bundle: validation     ignore_case: true     values:       title: validation_name       body: validation_description       field_validation_type:         plugin: entity_lookup           access_check: false           ignore_case: true           source: validation_type 

The error I’m getting is

Uncaught PHP Exception DrupalCoreConfigUnsupportedDataTypeConfigException: “Invalid data type in config xxxxxx, found in xxxxxx : A colon cannot be used in an unquoted mapping value at line 282 (near ” source: validation_type”).” at xxxxxx line 117, referer: xxxxxx

Because I’m relatively new in using the Migrate/Migrate Plus modules, I’m not sure if the error is triggered because I’m doing something wrong with the syntax or just because I can’t use entity_lookup inside an entity_generate. So, the question is: can I do something like this, or I’m forced to use a separate migration instead of entity_generate and the call it with migration_lookup?

[later edit, just for context]

my field definition:

-  name: validation_type  label: 'Validation Type'  selector: $.Description.Validation[*].Type #item_selector is set to $.Schema[*] 

the relevant part of the source JSON:

{   "Schema": [     {       "Description": {         "Validation": [           {             "Type": "CUSTOM_TYPE",             "Description": "lorem ipsum"           }         ]       }     }   ] }