Validities Using Validity Data From Planning 

Use

This function determines the validity start and end dates of a substitute product, using the following validity data from planning, which the system has saved in the interchangeability master data:

Stock exhaustion date

Successor product planning date

Defining the validity start date and end date for a substitution product is necessary for generating a list of substitution products. Information about the validity of the interchangeability relationship between a predecessor and a successor product is defined in the interchangeability master data. The rules-based ATP check, on the other hand, requires information about the validity of one substitute product.

Prerequisites

●     In the master data for interchangeability, you have chosen the Use Planning Validity Data value for the validity in a product substitution procedure.

●     You have made all the settings in the interchangeability master data and in integrated rule maintenance. For more information, see Substitutions from Master Data (with Condition Technique).

Activities

The system defines the validity start date and end date in the following way:

●     Validity Start Date

The validity start date of a product corresponds to the successor product planning date of the predecessor product . If no predecessor product exists for a product, the system is unable to define a validity start date for this product.

●     Validity End Date

The validity end date of a product corresponds to the stock exhaustion date of this product.

Example

The following table summarizes the settings that are defined in the interchangeability master data.

Predecessor Product	Successor Product	Stock Exhaustion Date	Successor Product Planning Date
P1	P2	01.12.2005	01.08.2005
P2	P3	01.12.2006	01.08.2006

The following table lists the validities that the system defines for the rules-based ATP check.

Substitute Product	Validity Start Date	Validity End Date
P1	-	01.12.2005
P2	01.08.2005	01.12.2006
P3	01.08.2006	-

The system does not define a validity start date for P1, since no predecessor product with a successor product planning date exists for P1. The validity end date of P1 corresponds to the stock exhaustion date of P1.

The validity start date of P2 corresponds to the successor product planning date of P1. The validity end date of P2 corresponds to the stock exhaustion date of P2.

The validity start date of P3 corresponds to the successor product planning date of P2. The system does not define a validity end date for P3, since no stock exhaustion date exists for P3.