Updated on Aug 25, 2026
Full error name: “eBay Error [37]: Your eBay Business Policies are incomplete or outdated“
Seeing error code 737 (“…Please enter a valid postal code”)?
Read Your eBay Business Policies are incomplete or outdated 737 ->
Cause
To list on eBay you must be opted-in to eBay Business Policies and have valid Payment, Returns, and Postage (shipping) policies selected. This error means your eBay business policies are missing, incomplete, or out of date, so eBay cannot accept the listing sent from Nembol. Let’s set them up correctly and clear the error.
Solution
To fix this error, set up your eBay business policies and then select them in Nembol.
1. Create or update your policies on eBay
- Go to eBay.com -> Account Settings -> Selling -> Business Policies.
- Create your Postage (shipping), Payment, and Returns policies from scratch, or edit the existing ones and save. Make sure each one saves with an “updated successfully” status.
2. Select the policies in Nembol
- Open the Channels tab.
- Find your eBay and click on it.
- Go to Publish settings -> scroll down to Business policies section.
- Under Payment, Returns, and Postage, select one policy of each type (see the screenshot below).
- Save your changes.
Note: If you use calculated shipping, make sure your products have weight and dimensions, and that you provide your inventory postal code in your eBay settings.
3. Relist your products
- Go to the Products tab.
- Open the products in error.
- Click Save, or use Retry or Update, to retry the publication.
Once the products are listed, you can sync their inventory.
If the error remains
- Create 3 new policies on eBay (even with the same data as your current ones) and associate them with Nembol. This clears the error in almost all cases.
- Make sure you are not using a calculated shipping policy for the first publication: select a flat postage policy in Nembol and retry. You can bulk-assign a calculated shipping policy directly on eBay afterwards.
- If you were already using a flat policy, delete some outdated policies and create fresh ones to use with Nembol.