The quickest way to get up to speed on this stuff is to work from examples. Another consideration: Creating macros to augment logic works just fine, but without jumping through hoops, the user experience with macro-based screens is limited and can be frustrating. Experience has shown that these types of customizations are best done using VB6. Yes - that's right, I said VB6.

All that to offer some assistance. If you indicate the following, I'll create a sample project to get you over the basics.
1. Which field do you want to interact with?
2. Which version of Sage 300?
3. Do you have a VB6 dev environment available?

The quickest way to get up to speed on this stuff is to work from examples. Another consideration: Creating macros to augment logic works just fine, but without jumping through hoops, the user experience with macro-based screens is limited and can be frustrating. Experience has shown that these types of customizations are best done using VB6. Yes - that's right, I said VB6.

All that to offer some assistance. If you indicate the following, I'll create a sample project to get you over the basics.
1. Which field do you want to interact with?
2. Which version of Sage 300?
3. Do you have a VB6 dev environment available?

Thanks for the reply. I do have VB6 environment. Visual Studio 6 and 2012 are the two main developer tools I use. A sample project will be great!. I really appreciate your help!

Sorry, I forgot to mention Sage 300 2012 is the version we are using

Here's a link to a sample project that should get you up and running. Let me know if you have any questions.

www.dropbox.com/.../61_Shipment_Sample.zip

Thank you very much for the sample code. Have a nice day!