The Product Advertising API (PA-API) for Sellers is Shutting Down Aug. 31st


In our effort to make sure that anyone who uses PA-API for their Amazon seller account is aware that it is shutting down on August 31st, I thought it might be a good idea to start a thread on this forum.

If you are a developer who provides services to Amazon sellers, you need to migrate over to the MWS Products API before August 31st. The sellers who are using your service need to register for MWS so they can continue to use your product with MWS.

If you are a seller who is using a 3rd-party tool and you’re not sure whether your provider has migrated from PA-API to MWS, you need to make certain before the end of this month.

Many 3rd-party solution providers use PA-API for their repricing software. If they don’t move away from it and use the MWS Products API before August 31st, their software will not continue to work.

I’ll try to respond to questions in this thread, but if you’re not sure, please feel free to contact the MWS support engineers who can help you. There is a contact link on all the MWS Portals. Here are the links:
• CA:
• DE:
• FR:
• JP:
• UK:
• US:
Hope that helps,


I am hoping that Amazon would post an update here as only 48 hrs or less are left.



Hello, Paul. What kind of update are you looking for? The plans have not changed.


Thanks Sharon,

There are quite a few known bugs in the API, I was actually looking for a newer version with fix to those bugs.



I don’t have a date for you, but the team is actively working on fixes. They won’t be ready by tomorrow, though.


Sorry … Not very happy to go live with bugs and not having a time-line …



Sharon, I’m sorry to bother you again, but your referral to the AWS forum was useless. Mary over there has stopped responding, and the Associates customer support has not responded to my inquiry after a couple of weeks. My associates account is still getting a blacklist response from the PA-API. I know it isn’t your department, but is there any way you can light a fire under the Associates PA-API team and ask them to resolve this issue? I’m starting to feel like Amazon doesn’t care a whit for Associates anymore.񜁗


Dear Sharon,

We need direct communication from Amazon to sellers regarding these bugs, because we are tired of telling they are Amazon bug, and sellers don’t tend to believe us …

For the transparency and the clarity of the matter, would you please have the bugs posted on Seller Central dashboard so that seller could see when they login ?



This is the information I’ve received from the Associates team. Please follow these instructions to receive help:

If you are using the Product Advertising API in conjunction with the Associate program and have started receiving error messages stating that your account has been blacklisted, please contact Associate Customer Service. In the contact form, please provide your:

  • Associate Store-ID
  • AWSAccessKeyId used to call the API
Do not include your Secret Key id.

Contact Associate Customer Service -
We believe that a small number of Associates may be affected by a planned deprecation of the MWS Seller version of the Product Advertising API.
Please note that changes made last year to the API may impact your use case for the API. See details -


Sharon, I did all this 2 weeks ago and never received a response.


[quote=“Imaginator Press, Inc”]
Sharon, I did all this 2 weeks ago and never received a response.[/quote]
Please test again and let me know. I believe we’ve fixed this issue for you. Please be aware that it can take between 10 minutes to 2 hours to propogate, but I’d appreciate hearing back to know when it’s working.


You too!


[quote=“Imaginator Press, Inc”]
Looks like it’s working now. THANK YOU SO MUCH!!![/quote]
You are quite welcome. Have a great weekend!


Looks like it’s working now. THANK YOU SO MUCH!!!


So what is the actual date the seller PA-API will be shutting down? It seems to still be in operation 6 days later – has the date been extended, and if so what is the new date?


My understanding is you no longer have access to the “Seller” version (which had much more information returned) but the “Associate” version continues (you won’t get seller ids, etc etc etc. The actual API won’t shut down, just the functionallity will change. I haven’t even bothered to try to be honest.


I’ve created new keys for associate use and that version is alive and well.


If you are a Seller AND an Associate, do you need different keys for the 2? i.e the now 2 different/separate APIs (P API for sellers and ‘new’ PA API for Associates).

Where (link) did you generate new ASSOCIATE Keys?

All my Associate sites went down (were blacklisted from previously being whitelisted) on the 1st, even the ones using the NEW PA API, which should still work, but it does not. BTW, My (new) MWS SELLER apps are working fine… ?:expressionless:

I contacted Associate Support (link per Sharon, Thanks, Sharon) several days ago, but no response yet.


While it may be possible to get the keys fixed after all I’ve seen it’s just easier to use a different email address and get new ones. DO NOT use the email address linked to your seller account or used for the old keys …

As I suspected it doesn’t matter which API version … in relation to the date of the version … we +thought+ we were calling. We were still calling either the Seller or Associate +version+ of the PA API based on how Amazon classified or keys using our email addresses.

Example: I could call either an older API version date like 2010-10-01 or the 2011-08-01 version date like an Associate but still be considered calling the Seller PA API. Associates ccould/can only call the 2011-08-01 version date.


+While it may be possible to get the keys fixed after all I’ve seen it’s just easier to use a different email address and get new ones. DO NOT use the email address linked to your seller account or used for the old keys …+

Yep, that’s what it needed - a new Key (and account) NOT linked to my seller account… Working now, Thanks!