Hello, Sage Peachtree 2010 SDK is now retired and no longer available for download. You have to upgrade your Peachtree instance to the latest version 2020 and then you can use the SDK for 2020. Please send your contact details including business name and address to [email protected] and we will have a Sage representative contact you with the upgrade options. Thanks!

The problem is SoumenS we are an ISV who sell a hospital management system. It is our costumers who use Peachtree accounting software to manage their finance. We can not force all of them to upgrade to Peachtree 2020 version.

It would be more fitting if we can get the SDK for 2010 version in this case.

You're probably officially in a bit of a Catch 22 situation NetTm. As SoumenS mentions, you're not going to get any official support. There may be someone on the boards that has a copy of the SDK they could share with you (though I'm sure that may not be officially legitimate, license wise).
If you are doing a .NET based integration, you can grab the Sage.Peachtree.API.dll file off of one of the customers machines (it can be the server or a client, both should have that file) and just pull that file in to a Visual Studio project and start coding. You'd need to get an authorization code from Sage to connect to live production databases, but I would expect your authorization code to work in 2010 as well as 2020 (though I don't know that to be a fact).

Thank you fuerstma. Is there any documentation related to Sage.Peachtree.API.dll?

Hey NetTm What you could do for documentation is grab the 2020 SDK (or a later version) and check out the Help file there. There will be a few functions/features available in the 2020 SDK that won't be available in the 2010, but it will be obvious when the function/method flat out isn't available. Not the best way to work, but it will do in a pinch. Such is the life of developing/support using out-of-support/old software.

SDK 2020.1 can be downloaded from KB 101670 - https://support.na.sage.com/selfservice/viewContent.do?externalId=101670. 

fuerstma said:

Sage.Peachtree.API.dll

hey fuerstma I tried to find the dll in some of our clients computers. It does not exist on all of their pc. Does it have a different name for peachtree 2010?

Hey NetTm -

Interesting. I'll admit I only have easy access to Sage 50 back to 2013. A brief amount of searching led me to believe that Sage 50 was still called only Peachtree (not Sage or Sage Peacthree) in 2010, so I suspect there may be a similar DLL on your systems, but it won't have the Sage name in it. In other words, can you do a search for *.API.dll on those machines? That's my first guess... maybe it's as simple as there is a Peachtree.API.dll file?

Secondly, I did a google search for "2010 Sage.Peachtree.API.DLL" which returned this thread on the Sage forums - https://www.sagecity.com/support_communities/sage50_accounting_us/f/sage-50-u-s-software-development-kit-sdk/51369/can-t-find-sage-peachtree-api-dll

Quoting the one possibly interesting response...

"Yes it does matter, the Sage.Peachtree.API is referenced through the 2011 and 2012 .NET API. Your going to need to use the sample apps that are located in the Peachtree SDK\COM Samples\2010 folder."

So I'm not fully sure what the poster is driving at. Are they saying that Sage started the .NET integration with the 2011 and 2012 releases? I'm not sure. But they do seem to indicate that on a system that has Peachtree 2010 installed, there will be a Peachtree SDK\COM Samples\2010 folder on that machine. So it may be worth looking for that folder on a machine with Peachtree 2010 installed, and see what files and DLL's are in that folder.