Invoice line period start date
    The date when the Invoice period for this Invoice line starts.
About
    - ID
 
    IBT-134 
    
    - Cardinality
 
    0..1 
    
    
    
    - Section
 
    - Shared
 
    
    
    - Name
 
    - Invoice line period start date
 
    
    
    
    
    - Syntax binding
 
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    - Rules
 
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            - IBR-085: [ibr-085]-Start date of line period (ibt-134) MUST be within invoice period (ibg-14).
 
            
            
            
            
            - IBR-073: [ibr-073]-A date MUST be formatted YYYY-MM-DD in (ibt-002), (ibt-007), (ibt-009), (ibt-026), (ibt-072), (ibt-073), (ibt-074), (ibt-134), (ibt-135).