## dmc0021 - protection received dmc0021 date of protection value mandatory or unknown

### Card of business rule protection received dmc0021 date of protection value mandatory or unknown

Name | protection received dmc0021 date of protection value mandatory or unknown
Code | dmc0021
Comment | Mandatory constraint for attribute 'date of protection value' of entity type 'protection received', it must be reported either as a value, or as "Unknown".
Rule Type | Constraint

### Server expression of the business rule protection received dmc0021 date of protection value mandatory or unknown

(('protection received'.'date of protection value' is not null and 'protection received'.'date of protection value' <> "Unknown") or ('protection received'.'date of protection value' is not null and 'protection received'.'date of protection value' = "Unknown"))

### List of DNB-specific attributes of the business rule protection received dmc0021 date of protection value 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 protection received dmc0021 date of protection value mandatory or unknown

Short Description
Entity Attribute 'protection received.date of protection value'

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