Facebook Pixel Error: Server External ID Not Matching to Pixel External ID for Purchase Event

6 0 7

Hi there,

I know this is more on the facebook site but i hope someone can help me since i am not getting the same data in shopify than i get in facebook for my ad campaigns.

The Facebook Pixel says there is this error on the purchase event:




Any ideas on how to fix this problem and if this is related to my facebook ads data not showing up correctly in the marketing section in my shopify account?


Replies 58 (58)
New Member
2 0 3

Hey, I have the exact same problem here since the 09/06/2021 and I have looked every where online for this and there is no response online nor from the facebook team. I believe it's a bug from the facebook channel in Shopify. I really hope it will be fixed quickly

8 0 3

same here i am getting the same message since June 10th. Today I get the same message but for ATC, IC, view. I dont know what to do.

New Member
1 0 3

Having the same issue here too - just suddenly appeared and using the Facebook integration with Shopify so assuming this is a glitch that they're working to resolve? Screenshot 2021-06-18 at 09.23.33.png

5 0 1

Same here! Getting this since yesterday. I'm using the Shopify <> Facebook integration (see screenshots below).

@ Team Shopify, how can I/we resolve this?



Screen Shot 2021-06-18 at 12.55.10 PM.pngScreen Shot 2021-06-18 at 12.54.53 PM.png

New Member
3 0 5

Same problem here since 15.06.2021. Integration was fully made through Shopify Partner.


Could some employee from Shopify notify about this general alert which is increasing day by day ?




New Member
2 0 1

I'm having the same issue as everyone under the diagnostics tab.

Additionally is anyone else having this "inactive" message showing under the "Connected Partners" section? I have no idea why there are 3 of them too when I only have 1 shopify website connected.



New Member
1 0 0

Hi we are getting the same error from 17/06/2021 too! Infact for us, sales have crashed almost in unison with this pixel problem.

We started the external Id matching and got a subsequent error that server side external Id has errors. Shopify says this is not going to be handled by them ... So just confused and waiting ...

Has anyone experienced the same? 


New Member
2 0 1

Experiencing the same issue with all 8 events that Facebook has required since the IOS 14 update. I recently changed over from my custom javascript installation of the Facebook pixel to the Facebook Marketplace integration. Initially it was just duplicating events which Facebook was able to deduplicate inside the Events Manager, but now we're being flagged.

I'm going to send this over to our Plus Representative as well to see if there's anyway to accelerate the process.


New Member
6 0 0

Having the same problem, just started on 6-16 for me. Haven't seen anyone offer a fix yet sadly