Why does Apple use SAP ERP instead of Oracle ERP?

1. First Mover Advantage

SAP ERP came first. When Oracle was establishing itself as a force as a Financials package for big companies, SAP was already well established as a full ERP solution (for a while SAP really had no competition in that segment). By virtue of being first, SAP is well embedded in this space. The first mover advantage counts for a lot, because after an implementation the customer organization also has to build up a support team. This team can easily support an upgraded system or another system from the same vendor (especially if that vendor is SAP).

2. Integrated solution

This has already been mentioned, but let me talk about why its important. The core SAP ERP modules were built from the ground up to be fully integrated. So when you make a change in say finance, if it is related to sales, purchasing, inventory and/or projects, all the other modules are immediately updated. This integration is built into the very foundation of the system and comes by default. Now when you extend this with say CRM or SCM functionality, you can, with relatively little effort extend this to the other systems.

This level of integration is hard to beat, especially after Oracle decided to go on an acquisition spree of best-of-breed solutions. So compared to SAP what Oracle offers is a bunch of different products that will need to be cobbled together.

3. Mind-share/Brand Value

In certain markets, SAP is synonymous with ERP. Anything less is considered a compromise. In some cases it is also a status symbol. "I am going to implement SAP because my competitor/rival/evil cousin implemented it in his." Some companies implement it because it "improves their valuations".

4. Support Base

By virtue of having a much larger install base, SAP has a much larger pool of developers and consultants. Another effect of that is when you have a question there is a good chance Google can answer it for you.

SAP is more advanced and secured than Oracle ERP.

If you use SAP module un toched, it is error less compared to Oracle

AND also SAP is more user friendly and support MS Excel Data to Upload and download to the data base which makes data analysis very easy in it.

SAP is a company with a large applications business, a small middleware business and little bit of database technology , and that what Apple need . 

ERP is a system that integrates both internal and external business information across an entire organization, improving the flow of data and encompassing all aspects of the business, Hence, Apple primarily utilizes SAP as their ERP System.