Purchase schedule release types

Purchase schedule release types determine the type of purchase release and the requirement types that can be sent.

Release types

A release can be of the following types:

Material Release
A material release can contain push schedules or pull-forecast schedules.
Shipping Schedule
A shipping schedule can contain push schedules or pull call-off schedules.
Sequence Shipping Schedule
A sequence shipping schedule can only contain pull call-off schedules.

Requirement types

The following requirement types can be communicated:

Immediate
These schedule requirements have a start date in the past at the time of creation. These requirements must be shipped as soon as possible.
Firm
These schedule requirements are handled as actual orders that can be shipped.
Planned
These schedule requirement are sent to you for planning purposes only.

Release types and requirement types

The schedule's business partner determines from which session LN retrieves the logistic data to determine the type of purchase release and the requirements that can be sent.

Internal business partner
Data is retrieved from the Items - Purchase Business Partner (tdipu0110m000) session.
External business partner
Data is retrieved from the Purchase Contract Line Logistic Data (tdpur3102m000) session.

Items - Purchase Business Partner (tdipu0110m000)

Based on the Release Type in the Items - Purchase Business Partner (tdipu0110m000) session, a purchase release can be of the following Release Type and can contain purchase release line details with the following Requirement Type:

Release Type in Items - Purchase Business Partner (tdipu0110m000)	Release Type	Requirement Type	Linked EDI messages (BEMIS)
Shipping Schedule Only	Shipping Schedule	Firm or Immediate	BEM SHP001
Sequence Shipping Schedule Only	Sequence Shipping Schedule	Firm or Immediate	BEM SEQ001
Shipping Schedule or Sequence Shipping Schedule	Material Release	Planned	BEM MRL001
Shipping Schedule or Sequence Shipping Schedule	Shipping Schedule or Sequence Shipping Schedule	Firm or Immediate	BEM SHP001 or BEM SEQ001
Material Release	Material Release	Planned, Firm, or Immediate	BEM MRL001

Purchase Contract Line Logistic Data (tdpur3102m000)

Based on the Schedule Message Types in the Purchase Contract Line Logistic Data (tdpur3102m000) session, a purchase release can be of the following Release Type and can contain purchase release line details with the following Requirement Type:

Schedule Message Types				Release Type	Requirement Type	Linked EDI messages (BEMIS)
Use Material Release	Use Material Release for Firm Requirements	Use Shipping Schedule	Use Sequence Shipping Schedule	Release Type	Requirement Type	Linked EDI messages (BEMIS)
yes	no	yes	yes	Shipping Schedule or Sequence Shipping Schedule	Firm or Immediate	BEM SHP001 or BEM SEQ001
yes	no	yes	yes	Material Release	Planned	BEM MRL001
yes	yes	not applicable	not applicable	Material Release	Planned, Firm, or Immediate	BEM MRL001
no	no	yes	not applicable	Shipping Schedule	Firm or Immediate	BEM SHP001
no	no	not applicable	yes	Sequence Shipping Schedule	Firm or Immediate	BEM SEQ001

Note

For push schedules, shipping can be performed based on the EDI message BEM MRL001, but only for those schedule lines whose requirement type is Firm or Immediate.
EDI messages are only generated if the value of the Communication Channel field in the Purchase Contract Line Logistic Data (tdpur3102m000) session and/or the Items - Purchase Business Partner (tdipu0110m000) session is set to EDI.
Segment sets, which consist of several segments, are linked to requirement types. Which segment set(s) can be specified in the Items - Purchase Business Partner (tdipu0110m000) or Purchase Contract Line Logistic Data (tdpur3102m000) session, depends on the chosen release/message type(s). Depending on the release/message type(s) and the applicable requirement type, specific EDI messages can be generated in time when sending the purchase release to the supplier.
Because pull call-off schedule lines are not clustered and are automatically converted to purchase release line details with the status Scheduled, no segment set(s) are used. As a result, the requirement type is always Firm.
For push schedules lines, requirement types in the Purchase Schedule Lines (tdpur3111m000) session are calculated during the regeneration process, which you can perform in the Regenerate Schedules (tdpur3211m000) session. The requirement types in the Purchase Release Line - Details (tdpur3522m000) session are directly calculated from the schedule's applicable segment set and issue pattern. If you do not regenerate the schedule line, the value of the Requirement Type field in the Purchase Schedule Lines (tdpur3111m000) session is retrieved from the Requirement Type field in the Purchase Release Line - Details (tdpur3522m000) session. Which schedule lines are included when you generate release lines in the Generate Release Lines (tdpur3222m000) session, depends on the push schedule's release/message type(s). For example, if the release type is defined as Shipping Schedule Only, no material release is created, so the purchase release does not contain Planned release lines.