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Answer Posted / paulo
1)High costs. you will spend a lot of money in licesnses, then will spend even more in infrastructure (ABAP code wis highy non performatic, demanding expensive servers for even a basic implementation), then you will spen even more in consulting. Nothin works out of the box, everything must be "parametrized" or "customized" to be compliant with your processes.
SAP avoid at all costs the "programming", buy you will need more yours of "parametrization" than you would need of programming and the man/hour cost of SAP parametrizing/customizing is several times the cost of an hour of a senior Java (or .NET) programmer.
2)buggy software.
while I cant say for the main transactions, there is a lot of stuff that you will need additional producs from SAP line IDM, GRC,... these tools are buggy as hell and it's internal usage is purposefully complicated so you will need to send your IT team to a insanely expensive course to learn how to do ultra simple stuff (a single classroom for your IT personal will be over U$100.000,00)
3)Overcomplex UI
maybe due the need to make a "one solution that suits everyone", maybe due to incompetence, the UI is an exercise of sadism. If you put the lost time your personnel will have due to this lack of design and usability you can have a very large sum. If you send everyone to SAP training to learn how to master the tool you will se how a training can be expensive.
4)ABAP
A sysytem that will be central (or at the mininum have a huge importance) to your company is written is a language that only SAP uses. Professional with this knowledge are expensive, hard to find and of dubious quality.
5)lack of security
when you decide to implement SAP in your company, SAP have remote access to all your environment, can see all your data and do what they want. They swear they are the good guys and they will only use this access to help you with your problems and to audit the license consumption. Maybe it is true, but it is worth the risk?
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