Migration Checklist: Move from Gumroad, Payhip, or Shopify to 3DIMLI

A storefront migration is not a file-copying exercise. It is a change to the system that connects a promise, a payment, and a buyer’s access.

If you move too quickly, a polished new store can still leave earlier customers unable to retrieve purchases, search visitors landing on missing pages, or support staff unable to reconcile orders. The safest approach is to run the old and new paths in parallel until the new path has passed a real buyer test.

1. Build a migration manifest

Start with a spreadsheet or structured document containing one row per product. Record:

• old product title and URL;
• planned new title and URL;
• product type and current price;
• source file location and version;
• cover images, previews, and alt text;
• licence or usage terms;
• delivery method;
• active discounts;
• number of existing buyers; and
• owner responsible for checking the migrated listing.

Keep an untouched backup of exports and source assets. Do not overwrite the only working copy while renaming or compressing files.

2. Export access and transaction evidence

Download every record the current platform lawfully makes available: orders, refunds, customer identifiers, subscription state, licence keys, invoices, and access history. The exact export varies by platform and plan.

Order history is not the same as marketing consent. A buyer email collected to fulfil a purchase should not automatically be imported into a newsletter or promotional sequence. Preserve the consent boundary and document what each field may be used for.

Also decide how existing customers will retrieve their purchases after the move. Options may include keeping the old library available, issuing replacement access individually, or providing a verified support process. Do not promise an automatic account migration unless both platforms support it and you have tested it.

3. Clean the catalog before rebuilding it

Migration is a useful quality-control moment. For every listing, verify:

• the title describes the actual product;
• screenshots match the current version;
• archive files open without errors;
• instructions name required software and versions;
• the licence is understandable;
• support limits are explicit;
• prices and tax language are current; and
• obsolete bonuses or broken external links are removed.

This reduces the risk of transferring years of catalog clutter into the new store.

4. Rebuild the product and its delivery path

Create the listing on 3DIMLI with the appropriate product type, preview assets, files, price, tags, SEO title, description, licence, and support notes. For larger catalogs, the bulk-upload and watch-folder guide can reduce repetitive file handling, but every resulting product page still needs a manual review.

Use a consistent naming convention for files and versions. A buyer should be able to tell whether template-pack-v3.zip replaces an older download and what changed.

5. Preserve search traffic

Create a URL map before changing public links. Each old product URL should point to the closest equivalent new product, not merely the new homepage. Where the old platform or custom domain allows redirects, use permanent redirects and retain them long enough for users and search engines to update.

Update links in:

• your website and blog;
• email automations;
• social profiles and pinned posts;
• videos, course notes, and PDF guides;
• affiliate materials; and
• paid campaigns.

Do not delete a ranking page before its replacement is live, indexable, and linked internally.

6. Run a small parallel pilot

Move one representative product first. Choose an offer that exercises the important parts of your catalog—such as a large download, a paid link, or a booking product.

Complete the checkout in a signed-out browser. Confirm the payment path, receipt, download, access instructions, refund workflow, seller record, and customer-support contact. Test on mobile and desktop. If the product contains a ZIP archive, extract it and open every included document.

Then reconcile the test order against the payment-provider record. A success screen alone does not prove that fulfilment and accounting records agree.

7. Communicate without creating panic

Tell affected buyers only what they need to know:

• the date of the change;
• whether previous purchase access changes;
• which link they should use;
• whether account action is required; and
• where to get help.

Keep the old store available during the transition when possible. Monitor support requests, failed payments, missing-file reports, and traffic to legacy URLs. Retire the old path only after the new one is stable and the access plan for historical buyers is working.

For broader platform selection, see best platforms to sell digital products and direct payouts versus platform wallets.