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Getting Error: 'tstamp' cannot be empty when trying to update inventory item through API. It doesn't happen on all updates for all items, but we doesn't send time object with any call.
Anyone familiar with this response?
Best,
Gustav
Solved! Go to Solution.
Planned to be fixed in 8.30 Visma.net Financials API updates for version 8.30 (December 2020)
-[Release Notes] - Visma.Net API 8.30.0 - 15.12.2020
We have tested the process, and the issue still exist. When attempting to update a product's item class, the api call fails with the error above. The customer have Replenishment settings on the products
Hi,
Since the forum is international we would appreciate that communication is done in English.
As for the issue you are having, could you please provide request JSON, full URL as well as the response HTTP status code and full error message.
We recommend that you have a look at this article to make it easier when reporting an issue:
API incidents - Troubleshooting and reporting

"type": {
"value": "FinishedGoodItem"
},
"description": {
"value": "Frog MTB 69 Grå/Grön 10:15 12nov"
},
"itemClass": {
"value": "14"
},
"defaultPrice": {
"value": 6312
}
}
{ "message": "Error: 'tstamp' cannot be empty." }
Hi,
We are not able to reproduce the issue using the same JSON.
Could you please check in the UI if there are any warnings on the item(Stock item: ScreenId=IN2025PL / Non-stock item: ScreenId=IN2020PL)?
Also, please check if you have issues updating any other items.
Thank you.

We're getting the same issue with other items. Can't see any warnings in user interface.
Hi,
Could you please check if you are getting the same issue in other endpoints as well?
After this, could you please send us the below to developersupport@visma.com:
- API client ID
- Ipp-Company-ID
- Company Name
- All headers sent in JSON request
Thank you.
