Great question! When you say:
questions about Transferring my eco App and app system to shopify with all data and who i should contact
Do you mean for getting your app on the Shopify App store to sell it? If so, there's a great blog post fron the content team which goes into great detail on this which you can read here. If you're referring to something else, don't hesitate to reply and elaborate a little more on what you mean and we can look into it!
Dear Mr Nike
Thanks for your reply
actually what I mean here that I want to make shopify as my system and put all products and data on it, and make my old application to work on shopyfy so my customer can use it
Thanks for getting back to me @A_Doleh.
So just to make sure we're on the same page. You want to build and add an app you created for your store only and not necessarily sell it in the Shopify App store?
If so, there is a Shopify Apps guide which goes into great detail about building/ adding apps which you can read here. Let me know if that's along the lines of what you mean.
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