Tag Archives: Availability Checking

Availability Checking vs. GATP

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GATP Value Add

One questions which arises is how GATP is better than normal availaility checking in SAP ERP. In order to help understand the difference this list below has been compiled.

  • GATP offers many more alternatives than does SAP ERP with regards to availability checking
  • GATP offers much more subtitution capability than SAP ERP availability checking. This means that customers have a higher likelyhood of being satisfied with product, for a lower investment in inventory and productive capacity.
  • GATP offers better performance than availability checking in SAP EPR as it uses the liveCache memory system.
  • Different levels of hierarchy can be checked. SAP ERP availability checking offers top level product checking, but GATP – if Multi-Level ATP is selected offers the ability to check availability at the component level.
  • GATP offers the ability to perform a global multi location check. (alternative location and product)

There are other differences, but this is a good starting point to determine if a GATP project is a strong opportunity at your company. If the list above is all highly desired, then the next step is to check on the likelihood of getting funding for a GATP project.

Availability Checking

Availability checking is performed in SAP SD and is different from GATP in several important ways:

  • Availability checking provides a more simple response to a request than GATP.
  • GATP looks out across many different plant to attempt to fulfill a demand.

GATP is covered in detail in this post.

http://www.scmfocus.com/sapplanning/2008/01/05/gatp/

Outside of GATP, availability checking also occurs in EWM.

Availability Checking Synopsis

  • Plant level
  • Storage location level
    • Checking rule (Contains several checking rules. The combination of checking group and checking rule determines the scope of the availability check for each business operations.)

  • Checking group
  • Scope of check

Scope of Check

  • Stocks (Safety stock, stock in transfer, Blocked stock, Restricted use stock, Subcontracted stock, Inspection stock)
  • Receipts or issue elements (POs, PRs, Dependent requirements, Reservations, Sales orders, Delivery notes, Shipping notifications, Dependent reservations, Call requirements, Production orders, Planned orders)