25002 Error - Inventory API publish Offer

[hacag-99]

Im working with sandbox environment on Ebay and trying to publish an offer but I always get this error. 
Can someone help me about it ? 

https://api.sandbox.ebay.com/sell/inventory/v1/offer/{offerId}/publish

{

    "errors": [

        {

            "errorId": 25002,

            "domain": "API_INVENTORY",

            "subdomain": "Selling",

            "category": "Request",

            "message": "A user error has occurred. System error. Unable to process your request. Please try again later."

        }

    ]

}

[fincottle44]

Same problem - did you ever solve this? eBay's API is shocking for support and error messages....

[apexsoftwarehouse]

Hi, I am also facing the same error in sandbox. Were you able to solve it?