## dmc0015 - instrument dmc0015 inception date of the instrument mandatory or unknown

### Card of business rule instrument dmc0015 inception date of the instrument mandatory or unknown

Name | instrument dmc0015 inception date of the instrument mandatory or unknown
Code | dmc0015
Comment | Mandatory constraint for attribute 'inception date of the instrument' of entity type 'instrument', it must be reported either as a value, or as "Unknown".
Rule Type | Constraint

### Server expression of the business rule instrument dmc0015 inception date of the instrument mandatory or unknown

(('instrument'.'inception date of the instrument' is not null and 'instrument'.'inception date of the instrument' <> "Unknown") or ('instrument'.'inception date of the instrument' is not null and 'instrument'.'inception date of the instrument' = "Unknown"))

### List of DNB-specific attributes of the business rule instrument dmc0015 inception date of the instrument mandatory or unknown

Name | Value
business rule classification | domain constraint
business rule scope | Checked within the data delivery
business rule status | active business rule
number of dependencies | 1
severity | blocking

### List of attached objects of the business rule instrument dmc0015 inception date of the instrument mandatory or unknown

Short Description
Entity Attribute 'instrument.inception date of the instrument'

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