10002 error

[Kasimijelu]

Hello community , 

I'm currently try to set up and test payment for my new business (edit)<<-- removed email -- >>(edit) 

however , After setting up all the Api keys , payment/checkout paypal page is idle .

spoke to my website support the said i have a 10002 error 

security error>> Longmessage>>security header not valid

etc etc  

anyone else experienced this 

thank you 

[MTS_Justin · Accepted solution]

Hello,

"10002" is an authentication error.

Check the API credentials you're using to ensure they're correct and ensure you're using the correct API endpoint. You can only use production account API credentials within our production environment and sandbox account API credentials within our sandbox environment. The credentials are not interchangeable between the two environments.

https://www.paypal.com/us/selfhelp/article/why-did-i-get-api-error-code-10002-ts1030

Thanks !

[Kasimijelu]

Thank you for your reply 

I followed the instruction and sent up a sand box account inserted correct details and viewed my api keys

 i also I have a live account also fully equipped with all the credentials 

I then clicked done and inserted all the details into my back end 

pls see attached 

the msg i received yesterday from my website support attached pls see kindly 

please kindly advise

[MTS_Justin]

Hello,

Please share the merchant id / payer id for the account from which you retrieved the API credentials.

Thread pinned to the top of this forum has he necessary instructions.

Thanks !

[Kasimijelu]

Hi merchant ID

Found it 

PayPal Merchant ID MDBUND2P79HS2

Thank you