Customizing Objects of 13000 Range fails

Hi,
I am trying to customize some objects of the Range 13000 which belongs to IN Database. I have a Developer license. However I cannot modify the objects and see the code underneath. How can I customize these objects of typicall IN Database,

Regards

Which version are you using?

Are you using proper developer/partner license?

What is the error message?

Hi, I had to change the license restart SQL and NAV and it worked. I can access and modify the objects of 13000 range. However, I could not access the objects of range 33014681 and above. Is there any chance that the partner who worked in this solution bought this specific range of objects ?

Yes, that’s an ISV range bought specific range.

you need to get license permissions from that partner only…