This blog post is a quick walkthrough on how to import solutions to Dynamics 365.
Step 1: Navigate to Advance Settings | Settings | Solutions.
Step 2: Select the necessary solutions and export the ones you wish to import to another instance. (Make sure they’re unmanaged)
Step 3: Navigate to the instance you wish to upload your exported solutions.
Step 4: Repeat Step 1.
Step 5: We can now select the import button where you will be prompted to upload your zip file downloaded from Step 2.
Step 6: Because we are importing unmanaged solutions we will be given an extra prompt. This prompt is only to warn you that an unmanaged solution, the customizations are written to the system like you have done them manually. This means after uninstalling an unmanaged solution, nothing happens. All customizations are still in the system. This is helpful to transfer your customizations but may offer problems if you would like to roll back to the state before you installed the solution.
