Hi Supriya,
If you have experienced in SAP-PM, than why you want to go with SAP MM certification.
For SAP Certification the rules to get training are different according to countries.
In India SAP authorized training partner first will ask your resume, after the analysed your resume they will recommend you the certification programe.
As you are telling that you are diploma holder as well as experienced in SAP.
You can go for certification, but my suggestion is, if you are going for SAP MM certification please go through once the documents available on internet. This will be very helpful in your training.
Thanks & regards,
Ankur Chauhan
